fix group update message for medium group 'You' left or kicked

js/models/messages.js

@@ -462,6 +462,16 @@
           isMe: true,
         });
       } else if (groupUpdate.left) {
+        if (
+          Array.isArray(groupUpdate.left) &&
+          groupUpdate.left.length === 1 &&
+          groupUpdate.left[0] === textsecure.storage.user.getNumber()
+        ) {
+          changes.push({
+            type: 'remove',
+            isMe: true,
+          });
+        } else {
           changes.push({
             type: 'remove',
             contacts: _.map(
@@ -472,6 +482,7 @@
             ),
           });
         }
+      }
 
       if (groupUpdate.name) {
         changes.push({