Crash in darkroom

[kofa73]

Describe the bug

Shortly after starting darktable I opened an image which had filmic rgb enabled. I disabled it and wanted to enable sigmoid, when darktable crashed. Whether the click to turn sigmoid on already took effect or not, I do not know.
I have not reproduced this yet; I'm uploading the backtrace before I lose it, I'll try to trigger it again later.

Steps to reproduce

I'll try to find the exact sequence. I've now tried enabling/disabling filmic and sigmoid with rapid clicks, but the crash has not re-occurred yet.

Expected behavior

should not crash

Logfile | Screenshot | Screencast

darktable_bt_YZ37I2.txt

Commit

No response

Where did you obtain darktable from?

self compiled

darktable version

4.7.0+509~g55b95bb480

What OS are you using?

Linux

What is the version of your OS?

Ubuntu 23.10

Describe your system?

64 GB RAM, Ryzen 5

Are you using OpenCL GPU in darktable?

Yes

If yes, what is the GPU card and driver?

NVidia 1060/6GB, 525.147.05

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

Build type: Release

[kofa73]

Pascal, I have not done much editing, but during that time the crash did not re-occur. Therefore, I am unable to verify the fix with any certainty. Thanks for investigating and publishing the PR so quickly.