Incorrect indentation when using "{number}>" command

[Freezerburn]

Description of the bug

In visual selection mode with Vintage enabled, if you select multiple lines, then enter a number to have a command repeated, then use the ">" or "<" command to change indentation, only a single line from all the lines selected will be indented the selected number of times. All the other selected lines will only have their indentation changed by a single step. The line that has its indentation changed by multiple steps will be the line that was initially selected.

Steps to reproduce

1. Open a file with multiple lines or put create multiple lines of whatever text you want.
2. Press "V" (capital V) to select a whole line.
3. Press "j" or "k" a number of times to select more than one line.
4. Press "2"/"3"/etc.
5. Press ">" or "<".

Expected behavior

Given a file that looks like:

a
a
a

If the cursor is on the first line, and the reproduction steps are followed to select the 2 lines below it then indent with repetition 2, the result should look like:

		a
		a
		a

Expected behavior was verified in VIM.

Actual behavior

Instead the file looks like:

		a
	a
	a

Sublime Text build number

4192

Operating system & version

macOS Tahoe 26.3.1 (a)

Additional information

This bug has existed for many years. I'm pretty sure the first version I used of Sublime Text 2 over a decade ago exhibited this behavior.