From 0557737f8dcc4ea4e00e535cf3e0d30812b47305 Mon Sep 17 00:00:00 2001
From: David Baker <dave@matrix.org>
Date: Tue, 16 Jan 2018 17:45:29 +0000
Subject: [PATCH] Don't modify original options arg

---
 src/languageHandler.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/languageHandler.js b/src/languageHandler.js
index 2d1fbc2f85..4e24c04d36 100644
--- a/src/languageHandler.js
+++ b/src/languageHandler.js
@@ -67,8 +67,7 @@ function safeCounterpartTranslate(text, options) {
     if (translated === undefined && count !== undefined) {
         // counterpart does not do fallback if no pluralisation exists
         // in the preferred language, so do it here
-        options.locale = 'en';
-        translated = counterpart.translate(text, options);
+        translated = counterpart.translate(text, Object.assign({}, options, {locale: 'en'}));
     }
     return translated;
 }