Snapshots lost on darktable close

[lkzkk]

Is there an existing issue for this?

• I checked and did not find my issue in the already reported ones

Describe the bug

Using darktable 5.4.1 on Windows. I have a particularly pesky edit with lots of steps, and I was careful to maintain my editing history snapshots so I can compare and revert various stages. After I closed and later reopened darktable, all the snapshots are gone.

Steps to reproduce

This happened in one particular instance. I am not using modules other than normal, but some modules - like color balance rgb - have multiple instances (8 in this case). Additionally, I have ~180 drawn mask shapes used across these modules. I do not know if this is or is not related to the occurence of the bug, but the only thing I can think of that makes this edit unique. Otherwise, the steps to reproduce are simple enough:

1. edit an image in darkroom
2. make a snapshot, observe that it is added to the snapshot list
3. close darktable
4. open darktable
5. observe the snapshot is not in the snapshot list

Expected behavior

No response

Logfile | Screenshot | Screencast

No response

Commit

No response

Where did you obtain darktable from?

darktable.org / GitHub release

darktable version

5.4.1 from darktable.org

What OS are you using?

Windows

What is the version of your OS?

Windows 11 Pro

Describe your system

No response

Are you using OpenCL GPU in darktable?

None

If yes, what is the GPU card and driver?

No response

Please provide additional context if applicable. You can attach files too, but might need to rename to .txt or .zip

The steps are reproducible with fresh edit history, after completely resetting the history stack.

I hope this is enough information to consider the bug report.

[TurboGit]

That's a feature, snapshots are live only for a session.

[ralfbrown]

To preserve edit state across sessions, make a duplicate instead of (or in addition to) a snapshot.