### Godot version

4.0 beta 15

### System information

Windows 10

### Issue description

It happened with both Google IME and MS-IME, and there was no problem until Beta14.
When typing Japanese characters, it is common to select a character from the suggestion window and then start typing the next character before confirming.
In this case, uncommitted characters are forcibly committed, and input of the next character begins.

**↓Beta15**

https://user-images.githubusercontent.com/186786/214753450-b493cca6-2644-4b3d-8cd2-660565cc3547.mp4

**↓Beta14**

https://user-images.githubusercontent.com/186786/214755127-dde819cc-4d63-403a-99b0-09821671f74e.mp4



### Steps to reproduce

It happened with both Google IME and MS-IME in beta15

### Minimal reproduction project

It is project independent and happens in the editor.
return caret_force_displayed;
}
void LineEdit::set_caret_force_displayed(const bool p_enabled) {
	if (caret_force_displayed == p_enabled) {
		return;
	}
	caret_force_displayed = p_enabled;
	_validate_caret_can_draw();
	queue_redraw();
}
float LineEdit::get_caret_blink_interval() const {
	return caret_blink_interval;
}
void LineEdit::set_caret_blink_interval(const float p_interval) {
	ERR_FAIL_COND(p_interval <= 0);
	caret_blink_interval = p_interval;
}
void LineEdit::_reset_caret_blink_timer() {
	if (caret_blink_enabled) {
		draw_caret = true;
		if (caret_can_draw) {
			caret_blink_timer = 0.0;
			queue_redraw();
		}
	}
}
void LineEdit::_toggle_draw_caret() {