ctrl+a and then ctrl+left does not function properly in list item

[hueychen27]

Expected Behavior

Text in the list should move all the way to the left with ctrl+a and ctrl+left

Actual Behavior

Nothing moves but the cursor leading to weird cursor behaviors in the list item. Moving cursor right by pressing right will suddenly shift the list item to the right place.

Steps to Reproduce

In the Scratch project itself and not the code editor, show a list, make a long list item that is clipped with ellipses and then press ctrl+a and ctrl+left after you select the list item.

System Details

Debian Sid running Firefox v126.0.1 (64-bit)