### 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
String ins = "\n";
		
		int space_count = 0;
		int line_col = 0;
		for (; line_col < cc; line_col++) {
			if (line[line_col] == '\t') {
				ins += indent_text;
				space_count = 0;
				continue;
			}
			if (line[line_col] == ' ') {
				space_count++;
				if (space_count == indent_size) {
					ins += indent_text;
					space_count = 0;
				}
				continue;
			}
			break;
		}
		if (is_line_folded(cl)) {
			unfold_line(cl);
		}
		
		
		
		bool brace_indent = false;
		if (auto_indent && !p_above && cc > 0 && is_in_comment(cl) == -1) {
			bool should_indent = false;
			char32_t indent_char = ' ';