Fixed mixed forward messages

app/js/messages_manager.js

@@ -1748,11 +1748,6 @@ angular.module('myApp.services')
     mids = mids.sort();
 
     var flags = 0;
-    var msgIDs = [];
-    var randomIDs = [];
-    var len = mids.length;
-    var i, mid, msgID;
-    var fromChannel = getMessageIDInfo(mids[0])[1];
     var isChannel = AppPeersManager.isChannel(peerID);
     var isMegagroup = isChannel && AppPeersManager.isMegagroup(peerID);
     var asChannel = isChannel && !isMegagroup ? true : false;
@@ -1761,17 +1756,21 @@ angular.module('myApp.services')
       flags |= 16;
     }
 
-    for (i = 0; i < len; i++) {
+    var splitted = splitMessageIDsByChannels(mids);
-      msgIDs.push(getMessageLocalID(mids[i]));
+    var promises = [];
+    angular.forEach(splitted.msgIDs, function (msgIDs, channelID) {
+      var len = msgIDs.length;
+      var randomIDs = [];
+      for (var i = 0; i < len; i++) {
         randomIDs.push([nextRandomInt(0xFFFFFFFF), nextRandomInt(0xFFFFFFFF)]);
       }
       var sentRequestOptions = {};
       if (pendingAfterMsgs[peerID]) {
         sentRequestOptions.afterMessageID = pendingAfterMsgs[peerID].messageID;
       }
-    return MtpApiManager.invokeApi('messages.forwardMessages', {
+      var promise = MtpApiManager.invokeApi('messages.forwardMessages', {
         flags: flags,
-      from_peer: AppPeersManager.getInputPeerByID(-fromChannel),
+        from_peer: AppPeersManager.getInputPeerByID(-channelID),
         id: msgIDs,
         random_id: randomIDs,
         to_peer: AppPeersManager.getInputPeerByID(peerID),
@@ -1783,6 +1782,10 @@ angular.module('myApp.services')
         }
       });
       pendingAfterMsgs[peerID] = sentRequestOptions;
+      promises.push(promise);
+    });
+
+    return $q.all(promises);
   };
 
   function startBot (botID, chatID, startParam) {