Testing version: Version 2.0 (10934) and the previous build
What were you doing: checking backlinks
What feature did you use: backlinks tab in info popover
What happened: all notes show the same backlinked note
What did you expect to happen: notes show other notes with linked mentions
This was happening last night, so the previous build had this issue. Notes show the same backlinked note (or nothing) even if the note is deleted and emptied from the trash. This particular issue is not present in iOS.
It depends on which note you select after opening Bear. The backlinks to the first note you select will “stick” in the tab no matter what note you select thereafter.