### Godot version

v4.0.stable.official [92bee43ad]

### 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:

![image](https://user-images.githubusercontent.com/857660/236700815-c78a317f-cdf8-4f3c-8489-41f9559ffe6d.png)


### Steps to reproduce

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

```gdscript
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:

```gdscript
class_name Test
extends Node

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

### Minimal reproduction project

N/A
if (!can_continue) {
		push_error(R"(Cannot use "continue" outside of a loop.)");
	}
	current_suite->has_continue = true;
	ContinueNode *cont = alloc_node<ContinueNode>();
	complete_extents(cont);
	end_statement(R"("continue")");
	return cont;
}
GDScriptParser::ForNode *GDScriptParser::parse_for() {
	ForNode *n_for = alloc_node<ForNode>();
	if (consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected loop variable name after "for".)")) {
		n_for->variable = parse_identifier();
	}
	consume(GDScriptTokenizer::Token::IN, R"(Expected "in" after "for" variable name.)");
	n_for->list = parse_expression(false);
	if (!n_for->list) {
		push_error(R"(Expected iterable after "in".)");
	}
	consume(GDScriptTokenizer::Token::COLON, R"(Expected ":" after "for" condition.)");
	
	bool could_break = can_break;
	bool could_continue = can_continue;
	
	can_break = true;