### Godot version

4.0.2.stable

### System information

Manjaro Linux 5.15.113-1-MANJARO

### Issue description

When I was trying to figure out #77725 i stumbled upon this:
![image](https://github.com/godotengine/godot/assets/14893831/364b89ce-00b2-4aef-a85e-f10c16936005)

pressing enter results in 
![image](https://github.com/godotengine/godot/assets/14893831/07d53b82-c919-4635-80e2-e1809b6bb11f)


It looks simmilar to #48436 , but it started happening to every code completion and I have absolutely no clue how it happened.

It happened after I moved(using shift+arrow keys to select, tab to indent and alt+arrow keys to move down)  the three dicts in the picture to within the function and added the dict 4.

### Steps to reproduce

Here's roughly what I did 
(might be slightly inaccurate, I was basically messing around to try and see the scope of $77725 when it happened)

1) create an empty script
2) declare a couple of dictionaries
3) declare a function
4) try out code completion within the function
5) create a lambda within the function and try 4) again
6) move the dictionaries' declaration within the function using keyboard shortcuts and try 4)




### Minimal reproduction project

N/A
code_edit->fold_line(0);
		CHECK(code_edit->is_line_folded(0));
		CHECK_FALSE(code_edit->is_line_folded(1));
		CHECK(code_edit->get_next_visible_line_offset_from(1, 1) == 4);
		code_edit->set_text("test\n\tline1\n$line1\nline2$\n\ttest");
		CHECK(code_edit->can_fold_line(0));
		CHECK_FALSE(code_edit->can_fold_line(1));
		code_edit->fold_line(1);
		CHECK_FALSE(code_edit->is_line_folded(1));
		code_edit->fold_line(0);
		CHECK(code_edit->is_line_folded(0));
		CHECK_FALSE(code_edit->is_line_folded(1));
		CHECK(code_edit->get_next_visible_line_offset_from(1, 1) == 4);
	}
	memdelete(code_edit);
}
TEST_CASE("[SceneTree][CodeEdit] region folding") {
	CodeEdit *code_edit = memnew(CodeEdit);
	SceneTree::get_singleton()->get_root()->add_child(code_edit);
	code_edit->grab_focus();
	SUBCASE("[CodeEdit] region folding") {
		code_edit->set_line_folding_enabled(true);
		
		code_edit->set_text("#region region_name\nline2\n#endregion");
		code_edit->clear_comment_delimiters();
		code_edit->add_comment_delimiter("#", "");
		CHECK(code_edit->is_line_code_region_start(0));
		CHECK_FALSE(code_edit->is_line_code_region_start(1));
		CHECK_FALSE(code_edit->is_line_code_region_start(2));
		CHECK_FALSE(code_edit->is_line_code_region_end(0));