### Godot version

4.0.2

### System information

Windows 11

### Issue description

Double clicking on `$MyNode` in the script editor will select the whole name including the "$".

But double clicking on `%MyNode` (unique name) will select the name but will not include the "%".

Dragging a node from the scene tree into the script editor brings up the property/method hint list, even though a "." has not been typed. Pressing enter appends "new()" even though this makes no sense as there is no period so it is just appending it directly to the node name: `$MyNodenew()`


### Steps to reproduce

Type `%MyNode` in a script and double click on it.

Type `@onready var x =` in a script, drag a node from the scene tree, then press enter.


### Minimal reproduction project

N/A
deselect(i);
			if (p_above) {
				if (cl > 0) {
					set_caret_line(cl - 1, false, true, 0, i);
					set_caret_column(get_line(get_caret_line(i)).length(), i == 0, i);
				} else {
					set_caret_column(0, i == 0, i);
					first_line = true;
				}
			} else {
				set_caret_column(line.length(), i == 0, i);
			}
		}
		insert_text_at_caret(ins, i);
		if (first_line) {
			set_caret_line(0, i == 0, true, 0, i);
		} else if (brace_indent) {
			set_caret_line(get_caret_line(i) - 1, false, true, 0, i);
			set_caret_column(get_line(get_caret_line(i)).length(), i == 0, i);
		}
	}
	end_complex_operation();
}
void CodeEdit::set_auto_brace_completion_enabled(bool p_enabled) {
	auto_brace_completion_enabled = p_enabled;
}
bool CodeEdit::is_auto_brace_completion_enabled() const {
	return auto_brace_completion_enabled;
}
void CodeEdit::set_highlight_matching_braces_enabled(bool p_enabled) {