Fix unread mentions count

src/components/chat/input.ts

@@ -859,7 +859,7 @@ export default class ChatInput {
     this.goDownUnreadBadge.classList.toggle('badge-gray', this.appNotificationsManager.isPeerLocalMuted(this.chat.peerId, true));
 
     if(this.goMentionUnreadBadge && this.chat.type === 'chat') {
-      const hasMentions = !!dialog?.unread_mentions_count;
+      const hasMentions = !!(dialog?.unread_mentions_count && dialog.unread_count);
       this.goMentionUnreadBadge.innerText = hasMentions ? '' + (dialog.unread_mentions_count) : '';
       this.goMentionBtn.classList.toggle('is-visible', hasMentions);
     }

src/lib/appManagers/appMessagesManager.ts

@@ -4618,7 +4618,7 @@ export class AppMessagesManager {
           foundDialog.unread_count = setCount;
         }
 
-        if(newUnreadMentionsCount < 0) {
+        if(newUnreadMentionsCount < 0 || !foundDialog.unread_count) {
           foundDialog.unread_mentions_count = 0;
         }
       }
@@ -4730,14 +4730,14 @@ export class AppMessagesManager {
       const affected = historyUpdated.unreadMentions || historyUpdated.unread;
       const releaseUnreadCount = affected && this.dialogsStorage.prepareDialogUnreadCountModifying(foundDialog);
       
-      if(historyUpdated.unreadMentions) {
-        foundDialog.unread_mentions_count = Math.max(0, foundDialog.unread_mentions_count - historyUpdated.unreadMentions);
-      }
-
       if(historyUpdated.unread) {
         foundDialog.unread_count = Math.max(0, foundDialog.unread_count - historyUpdated.unread);
       }
 
+      if(historyUpdated.unreadMentions) {
+        foundDialog.unread_mentions_count = !foundDialog.unread_count ? 0 : Math.max(0, foundDialog.unread_mentions_count - historyUpdated.unreadMentions);
+      }
+
       if(affected) {
         releaseUnreadCount();
         rootScope.dispatchEvent('dialog_unread', {peerId});