diff --git a/src/autocomplete/EmojiProvider.js b/src/autocomplete/EmojiProvider.js
index ef8a39edaf..cadbe44bf6 100644
--- a/src/autocomplete/EmojiProvider.js
+++ b/src/autocomplete/EmojiProvider.js
@@ -118,7 +118,7 @@ export default class EmojiProvider extends AutocompleteProvider {
     }
 
     renderCompletions(completions: [React.Component]): ?React.Component {
-        return <div className="mx_Autocomplete_Completion_container_pill mx_Autocomplete_Completion_container_truncate">
+        return <div className="mx_Autocomplete_Completion_container_pill">
             {completions}
         </div>;
     }
diff --git a/src/autocomplete/QueryMatcher.js b/src/autocomplete/QueryMatcher.js
index 07398e7a5f..762b285685 100644
--- a/src/autocomplete/QueryMatcher.js
+++ b/src/autocomplete/QueryMatcher.js
@@ -18,7 +18,7 @@ limitations under the License.
 import _at from 'lodash/at';
 import _flatMap from 'lodash/flatMap';
 import _sortBy from 'lodash/sortBy';
-import _sortedUniq from 'lodash/sortedUniq';
+import _uniq from 'lodash/uniq';
 import _keys from 'lodash/keys';
 
 class KeyMap {
@@ -101,7 +101,7 @@ export default class QueryMatcher {
             }
         });
 
-        return _sortedUniq(_flatMap(_sortBy(results, (candidate) => {
+        return _uniq(_flatMap(_sortBy(results, (candidate) => {
             return candidate.index;
         }).map((candidate) => {
             // return an array of objects (those given to setObjects) that have the given
diff --git a/src/components/views/messages/TextualBody.js b/src/components/views/messages/TextualBody.js
index 9d999224fa..b5ac45c1c7 100644
--- a/src/components/views/messages/TextualBody.js
+++ b/src/components/views/messages/TextualBody.js
@@ -178,27 +178,27 @@ module.exports = React.createClass({
                 const href = node.getAttribute("href");
                 // HtmlUtils transforms `matrix.to` links to local links, so match against
                 // user or room app links.
-                const match = /^#\/(user|room)\/(.*)$/.exec(href);
-                if (match) {
+                const match = /^#\/(user|room)\/(.*)$/.exec(href) || [];
+                const resourceType = match[1]; // "user" or "room"
+                const resourceId = match[2]; // user ID or room ID
+                if (match && resourceType && resourceId) {
                     let avatar;
                     let roomId;
                     let room;
-                    let userId;
                     let member;
-                    switch (match[1]) {
+                    switch (resourceType) {
                         case "user":
                             roomId = this.props.mxEvent.getRoomId();
                             room = MatrixClientPeg.get().getRoom(roomId);
-                            userId = match[2];
-                            member = room.getMember(userId) ||
-                                new RoomMember(null, userId);
-                            avatar = <MemberAvatar member={member} width={16} height={16} name={match[2]}/>;
+                            member = room.getMember(resourceId) ||
+                                new RoomMember(null, resourceId);
+                            avatar = <MemberAvatar member={member} width={16} height={16} name={resourceId}/>;
                         break;
                         case "room":
-                            room = match[2][0] === '#' ?
+                            room = resourceId[0] === '#' ?
                                 MatrixClientPeg.get().getRooms().find((r) => {
-                                    return r.getCanonicalAlias() === match[2];
-                                }) : MatrixClientPeg.get().getRoom(match[2]);
+                                    return r.getCanonicalAlias() === resourceId;
+                                }) : MatrixClientPeg.get().getRoom(resourceId);
                             if (room) {
                                 avatar = <RoomAvatar room={room} width={16} height={16}/>;
                             }
diff --git a/src/components/views/rooms/MessageComposerInput.js b/src/components/views/rooms/MessageComposerInput.js
index 6463573a2a..a2bbe7a812 100644
--- a/src/components/views/rooms/MessageComposerInput.js
+++ b/src/components/views/rooms/MessageComposerInput.js
@@ -535,16 +535,19 @@ export default class MessageComposerInput extends React.Component {
         if (this.state.isRichtextEnabled) {
             // These are block types, not handled by RichUtils by default.
             const blockCommands = ['code-block', 'blockquote', 'unordered-list-item', 'ordered-list-item'];
+            const currentBlockType = RichUtils.getCurrentBlockType(this.state.editorState);
 
             if (blockCommands.includes(command)) {
-                this.setState({
-                    editorState: RichUtils.toggleBlockType(this.state.editorState, command),
-                });
+                newState = RichUtils.toggleBlockType(this.state.editorState, command);
             } else if (command === 'strike') {
                 // this is the only inline style not handled by Draft by default
-                this.setState({
-                    editorState: RichUtils.toggleInlineStyle(this.state.editorState, 'STRIKETHROUGH'),
-                });
+                newState = RichUtils.toggleInlineStyle(this.state.editorState, 'STRIKETHROUGH');
+            } else if (command === 'backspace' && currentBlockType !== 'unstyled') {
+                const currentStartOffset = this.state.editorState.getSelection().getStartOffset();
+                if (currentStartOffset === 0) {
+                    // Toggle current block type (setting it to 'unstyled')
+                    newState = RichUtils.toggleBlockType(this.state.editorState, currentBlockType);
+                }
             }
         } else {
             let contentState = this.state.editorState.getCurrentContent();
@@ -651,6 +654,7 @@ export default class MessageComposerInput extends React.Component {
             // By returning false, we allow the default draft-js key binding to occur,
             // which in this case invokes "split-block". This creates a new block of the
             // same type, allowing the user to delete it with backspace.
+            // See handleKeyCommand (when command === 'backspace')
             return false;
         }
 
diff --git a/src/utils/MultiInviter.js b/src/utils/MultiInviter.js
index c26cc6b52e..9cdfb947f4 100644
--- a/src/utils/MultiInviter.js
+++ b/src/utils/MultiInviter.js
@@ -36,10 +36,6 @@ export default class MultiInviter {
      * Invite users to this room. This may only be called once per
      * instance of the class.
      *
-     * The promise is given progress when each address completes, with an
-     * object argument with each completed address with value either
-     * 'invited' or 'error'.
-     *
      * @param {array} addresses Array of addresses to invite
      * @returns {Promise} Resolved when all invitations in the queue are complete
      */
@@ -111,7 +107,6 @@ export default class MultiInviter {
             if (this._canceled) { return; }
 
             this.completionStates[addr] = 'invited';
-            this.deferred.notify(this.completionStates);
 
             this._inviteMore(nextIndex + 1);
         }, (err) => {
@@ -136,7 +131,6 @@ export default class MultiInviter {
             this.busy = !fatal;
 
             if (!fatal) {
-                this.deferred.notify(this.completionStates);
                 this._inviteMore(nextIndex + 1);
             }
         });