allowedColPos not working as aspected

[michael-binder]

Bug Report

Current Behavior
When allowedColPos is set for templateLayouts in PageTSConfig, the layout is not removed if the colPos is not allowed.

Expected behavior/output
If 1.allowedColPos = 1, the layout 1 should not be visible if the content element is in a column other than colPos=1

Environment

• TYPO3 version: 11.5
• news version: 10.0.3
• Composer Mode: yes

Possible Solution
This is where the real problem begins. The solution already existed in ticket #810. However, this was undone with ticket #963. I can't quite understand the reasoning from the ticket. What exactly was meant here? Even if I remove the option allowedColPos or activate this option only for one of the templateLayouts, I get the correct layouts for selection with the solution from #810 $allLayouts[$layout[1]] = $layout;.
Is there anyone who can confirm this or test the other option if there are still errors here?