background changes / bugs color

[JL710]

Describe the bug
Sometimes the background gets kinda changed until I reopen the document. The background changes in the color of the nextcloud theme (green in my case).
This happens when I copy text or refocus the window.

This does not happen every time, but I cant figure out when it starts and when it ends.

It started after I upgraded from nc 29 to 30.

To Reproduce
Steps to reproduce the behavior:

1. Go to a markdown document
2. mark some text (via cursor or keys)
3. Press ctrl + c or leftclick -> copy
4. Background is highlighted?

Alternatively:

1. Go to a markdown document
2. move the cursor to a specific position
3. focus another window
4. click back into the markdown document (does not matter if you focus using mouse or shortcuts)

Alternatively 2.:

1. Go to a markdown document
2. find a heading
3. drag the # on the left side

This one works on Chome as well!
This one works on my Windows Notebook as well

Expected behavior
I would expect it to have the same background after all and just copy the text or do nothing.

Screenshots
If applicable, add screenshots to help explain your problem.
Before Copying:

After copying:

Sometimes I get some kind of border as well:

Server details:

• Nextcloud version: 30.0.2

Client details:

• OS: Debian
• Browser: Firefox
• Browser version: 133.0.3 (64-bit)
• Device: desktop

[mejo-]

Thanks for your report @JL710! This issue was fixed recently with #6729 and the fix will be released with the upcoming Nextcloud server point releases.

[JL710]

Ops. Did not find the issue in my research. I am glad that this is fixed.