### 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
for (; from < line_length; from++) {
				if (str[from] == '\\') {
					from++;
					continue;
				}
				break;
			}
			
			bool same_line = false;
			if (in_region == -1) {
				for (int d = 0; d < delimiters.size(); d++) {
					
					int chars_left = line_length - from;
					int start_key_length = delimiters[d].start_key.length();
					int end_key_length = delimiters[d].end_key.length();
					if (chars_left < start_key_length) {
						continue;
					}
					
					bool match = true;
					const char32_t *start_key = delimiters[d].start_key.get_data();
					for (int k = 0; k < start_key_length; k++) {
						if (start_key[k] != str[from + k]) {
							match = false;
							break;
						}
					}
					if (!match) {
						continue;
					}