### Godot version

4.0 beta 10

### System information

Windows 11

### Issue description

On the text editor when using autocomplete on function arguments that receive Input Map names after autocompleting the function name, the string autocompleted appears with an extra " at the end.
This doesnt happen if you write " and then accept the Input name in the dropdown

### Steps to reproduce

- On the script editor
- Start writing `Input.get_vector` but when the dropdown appears with the autocomplete suggestion for `Input.get_vector` press enter to accept it, then press enter again to accept the Input map suggestion
- The autocompleted input name should have an extra "

### Minimal reproduction project

N/A
CHECK((int)code_edit->get_line_length_guidelines()[1] == 120);
	memdelete(code_edit);
}
TEST_CASE("[SceneTree][CodeEdit] Backspace delete") {
	CodeEdit *code_edit = memnew(CodeEdit);
	SceneTree::get_singleton()->get_root()->add_child(code_edit);
	code_edit->grab_focus();
	
	code_edit->set_text("");
	code_edit->insert_text_at_caret("test backspace");
	code_edit->select(0, 0, 0, 5);
	code_edit->backspace();
	CHECK(code_edit->get_line(0) == "backspace");
	
	code_edit->set_text("");
	code_edit->insert_text_at_caret("test backspace");
	code_edit->select(0, 0, 0, 5);
	code_edit->set_caret_column(0);
	code_edit->backspace();
	CHECK(code_edit->get_line(0) == "backspace");
	
	code_edit->set_text("");
	code_edit->insert_text_at_caret("line 1\nline 2");
	code_edit->set_caret_line(1);
	code_edit->set_caret_column(0);
	code_edit->backspace();
	CHECK(code_edit->get_line(0) == "line 1line 2");
	CHECK(code_edit->get_caret_line() == 0);
	CHECK(code_edit->get_caret_column() == 6);