I use the '<' (back arrow) and '>' (forward arrow) to navigate around my session history of note accesses; similar to how one can use back and forward arrows in a Web browser. Clicking a tag item in the sidebar takes me to the note with the tag, but disrupts the history with regard to back/forward. That is, I can no longer go back to the note I was in before clicking the tag. I seem to recall not having this problem with that a few versions back.
Windows 10 Pro,
Joplin for Desktop
Copyright © 2016-2020 Laurent Cozic
Joplin 1.2.6 (prod, win32)
Client ID: 770808a881e541d2b4f3f4e1c4ab708e
Sync Version: 2
Profile Version: 34
Keychain Supported: Yes
Revision: f5f117cb (master)