Multiline declarations with mixed tabs and spaces can't be commented out easily

[L4Vo5]

Godot version

v4.2.dev2.official [da81ca6]

System information

N/A

Issue description

After #44557, commenting a multiline declaration (like an array, dictionary, string, maybe others) with mixed tabs and spaces with the "Toggle Comment" shortcut causes the error Mixed use of tabs and spaces for indentation

Steps to reproduce

Have a multiline declaration with mixed tabs and spaces, highlight it, and press Ctrl+K (the toggle comment shortcut)

var test := [
	 2
]

#var test := [
	 #2
#]

var test = """
	 a
"""

#var test = """
	 #a
#"""

Minimal reproduction project

N/A

[dalexeev]

• Duplicate of Error when mixing tabs and spaces in comment line #52834.

Thanks for the report nonetheless!

[L4Vo5]

• Duplicate of Error when mixing tabs and spaces in comment line #52834.

Hmm, while the error itself is the same, that issue would only be "fixed" by allowing the mixed indentation before comments. My issue could be alternatively fixed by changing the Ctrl+K behaviour again.
For example, the shortcut could put the # after the tabs but before the space:

#var test := [
	# 2
#]

(that causes no errors)
Of course, technically the old behaviour of Ctrl+K could be reverted to fix this issue as well, but I think the above compromise would work better.

#var test := [
#	 2
#]

My issue is relevant when trying to comment out huge swathes of code automatically - I don't actually care if the # is before or after or in the middle of the tabs and spaces, I just want it to not cause errors by default.

[dalexeev]

@L4Vo5 I think #44557 is correct, we should fix #52834 instead. I'll take a look at it.