### 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.
}
		} break;
	}
	bool using_placeholder = text.is_empty() && ime_text.is_empty();
	bool display_clear_icon = !using_placeholder && is_editable() && clear_button_enabled;
	if (right_icon.is_valid() || display_clear_icon) {
		Ref<Texture2D> r_icon = display_clear_icon ? theme_cache.clear_icon : right_icon;
		if (alignment == HORIZONTAL_ALIGNMENT_CENTER) {
			if (Math::is_zero_approx(scroll_offset)) {
				x_ofs = MAX(style->get_margin(SIDE_LEFT), int(get_size().width - text_width - r_icon->get_width() - style->get_margin(SIDE_RIGHT) * 2) / 2);
			}
		} else {
			x_ofs = MAX(style->get_margin(SIDE_LEFT), x_ofs - r_icon->get_width() - style->get_margin(SIDE_RIGHT));
		}
	}
	int ofs = ceil(TS->shaped_text_hit_test_position(text_rid, p_x - x_ofs - scroll_offset));
	set_caret_column(ofs);
}
Vector2 LineEdit::get_caret_pixel_pos() {
	Ref<StyleBox> style = theme_cache.normal;
	bool rtl = is_layout_rtl();
	int x_ofs = 0;
	float text_width = TS->shaped_text_get_size(text_rid).x;
	switch (alignment) {
		case HORIZONTAL_ALIGNMENT_FILL:
		case HORIZONTAL_ALIGNMENT_LEFT: {
			if (rtl) {
				x_ofs = MAX(style->get_margin(SIDE_LEFT), int(get_size().width - style->get_margin(SIDE_RIGHT) - (text_width)));
			} else {
				x_ofs = style->get_offset().x;