### 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
MatchBranchNode *branch = alloc_node<MatchBranchNode>();
	reset_extents(branch, current);
	bool has_bind = false;
	do {
		PatternNode *pattern = parse_match_pattern();
		if (pattern == nullptr) {
			continue;
		}
		if (pattern->binds.size() > 0) {
			has_bind = true;
		}
		if (branch->patterns.size() > 0 && has_bind) {
			push_error(R"(Cannot use a variable bind with multiple patterns.)");
		}
		if (pattern->pattern_type == PatternNode::PT_REST) {
			push_error(R"(Rest pattern can only be used inside array and dictionary patterns.)");
		} else if (pattern->pattern_type == PatternNode::PT_BIND || pattern->pattern_type == PatternNode::PT_WILDCARD) {
			branch->has_wildcard = true;
		}
		branch->patterns.push_back(pattern);
	} while (match(GDScriptTokenizer::Token::COMMA));
	if (branch->patterns.is_empty()) {
		push_error(R"(No pattern found for "match" branch.)");
	}
	if (!consume(GDScriptTokenizer::Token::COLON, R"(Expected ":" after "match" patterns.)")) {
		complete_extents(branch);
		return nullptr;
	}
	SuiteNode *suite = alloc_node<SuiteNode>();
	if (branch->patterns.size() > 0) {