### 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
#endif
			break;
		}
	}
	while (!is_annotation && result != nullptr && !annotation_stack.is_empty()) {
		AnnotationNode *last_annotation = annotation_stack.back()->get();
		if (last_annotation->applies_to(AnnotationInfo::STATEMENT)) {
			result->annotations.push_front(last_annotation);
			annotation_stack.pop_back();
		} else {
			push_error(vformat(R"(Annotation "%s" cannot be applied to a statement.)", last_annotation->name));
			clear_unused_annotations();
		}
	}
#ifdef DEBUG_ENABLED
	if (unreachable && result != nullptr) {
		current_suite->has_unreachable_code = true;
		if (current_function) {
			push_warning(result, GDScriptWarning::UNREACHABLE_CODE, current_function->identifier ? current_function->identifier->name : "<anonymous lambda>");
		} else {
			
		}
	}
#endif
	if (panic_mode) {
		synchronize();
	}
	return result;
}
GDScriptParser::AssertNode *GDScriptParser::parse_assert() {