Multi-line class documentation comments begin with an extra space

[Pennycook]

Godot version

v4.0.stable.official [92bee43]

System information

Steam OS Holo, Steam Deck

Issue description

Using a [br] tag at the end of a line in a documentation comment adds an additional space at the beginning of the following line:

Steps to reproduce

The script below is what I used to generate the image above:

class_name Test
extends Node

## High-level description
##
## First line of detail.[br]
## Second line of detail.

Removing the space between ## and Second doesn't change the output.

The only workaround I've found so far is to remove the linebreak after the [br] tag, but this makes the documentation comments harder to read in the editor:

class_name Test
extends Node

## High-level description
##
## First line of detail.[br]Second line of detail.

Minimal reproduction project

N/A