Closing/Reopening Brave locks 1Password extension

Description of the issue:
The 1Password extension locks whenever Brave is closed and reopened. I think it locks other times too but I haven’t been able to pin down a procedure that always locks it except to close Brave and re-open it.

How can this issue be reproduced?

  1. Install 1Password extension.
    I have version 1.22.3 installed now but I don’t think this is a new or version specific problem.
  2. Open Brave. The 1Password icon in the menu bar will show a closed lock symbol.
  3. Unlock it.
  4. Close Brave
  5. Open Brave again.
  6. The extension will be locked again.

Expected result:
The extension should stay unlocked unless the Mac is restarted. That’s what happens with Safari.

Brave Version( check About Brave):
V1.19.92

Additional Information:
I don’t see any options in the extension’s Details page to manage unlocking. I don’t know whether the extension pays any attention to 1Password app’s settings. Its Preferences → Security page does include options to lock on sleep and several other conditions. The only one I have checked is “lock on fast user switching”.