Duplicate group with just one image after manually deleting the other(s) #11637

The bug

If I manually delete a (duplicate) image, the "review duplicates" utility shows the corresponding group with the single (!) leftover image. I expect that this is never shown, either silently ignored (when otherwise shown) or properly cleaned up (when deleting an image from the duplicate group).

The OS that Immich Server is running on

Debian Stable

Version of Immich Server

v1.111.0

Version of Immich Mobile App

None

Platform with the issue

• Server
• Web
• Mobile

Your docker-compose.yml content

Default from v1.111.0, with minor changes (listen to 127.0.0.1 only, add two volumes for external libraries)

Your .env content

Default, aside from paths and passwords

Reproduction steps

In my case I'm using an external library. Deleting from within the web UI (which just deletes metadata, but not the file itself?) or from outside (and rescanning the library for missing files) doesn't seem to make a difference.

1. Add image to two separate locations in external library
2. Run duplicate scan
3. Manually delete one of the duplicates
4. Check "review duplicates view"

Relevant log output

No response

Additional information

No response