Fix forwarding changelog

src/components/chat/contextMenu.ts

@@ -311,8 +311,8 @@ export default class ChatContextMenu {
     }, {
       icon: 'forward',
       text: 'Forward',
-      onClick: this.onForwardClick,
-      verify: () => this.chat.type !== 'scheduled' && !this.message.pFlags.is_outgoing && this.message._ !== 'messageService'
+      onClick: this.onForwardClick, // let forward the message if it's outgoing but not ours (like a changelog)
+      verify: () => this.chat.type !== 'scheduled' && (!this.message.pFlags.is_outgoing || !this.message.pFlags.out) && this.message._ !== 'messageService'
     }, {
       icon: 'forward',
       text: 'Message.Context.Selection.Forward',

src/lib/appManagers/appMessagesManager.ts

@@ -1900,6 +1900,24 @@ export class AppMessagesManager {
     peerId = appPeersManager.getPeerMigratedTo(peerId) || peerId;
     mids = mids.slice().sort((a, b) => a - b);
 
+    for(let i = 0, length = mids.length; i < length; ++i) {
+      const mid = mids[i];
+      const originalMessage: Message.message = this.getMessageByPeer(fromPeerId, mid);
+      if(originalMessage.pFlags.is_outgoing) { // this can happen when forwarding a changelog
+        this.sendText(peerId, originalMessage.message, {
+          entities: originalMessage.entities,
+          scheduleDate: options.scheduleDate,
+          silent: options.silent
+        });
+
+        mids.splice(i--, 1);
+      }
+    }
+
+    if(!mids.length) {
+      return Promise.resolve();
+    }
+
     if(options.dropCaptions) {
       options.dropAuthor = true;
     }