When there are no local notifications, the cross-wiki bundle text copy needs to be adapted avoiding the word "more".
For example, the copy of a cross-wiki bundle which has messages from two different wikis will be:
- "Messages from 2 other wikis." if there are no unread messages in the current wiki.
- "More messages from 2 other wikis." if there are unread messages in the current wiki.
Further context at T114350#1987575