### Godot version

4.0 dev Beta 10

### System information

MacBook Pro M1 Max

### Issue description

After I imported font.ttf file and move it from one folder to another under ://res godot suddenly crashed, and it still crashes after restart.

### Steps to reproduce

Import some font.ttf file and try to move into different folder

### Minimal reproduction project

N/A
ERR_FAIL_COND(p_face_index < 0);
	ERR_FAIL_COND(p_face_index >= 0x7FFF);
	FontFallback *fd = font_owner.get_or_null(p_font_rid);
	ERR_FAIL_COND(!fd);
	MutexLock lock(fd->mutex);
	if (fd->face_index != p_face_index) {
		fd->face_index = p_face_index;
		_font_clear_cache(fd);
	}
}
int64_t TextServerFallback::_font_get_face_index(const RID &p_font_rid) const {
	FontFallback *fd = font_owner.get_or_null(p_font_rid);
	ERR_FAIL_COND_V(!fd, 0);
	MutexLock lock(fd->mutex);
	return fd->face_index;
}
int64_t TextServerFallback::_font_get_face_count(const RID &p_font_rid) const {
	FontFallback *fd = font_owner.get_or_null(p_font_rid);
	ERR_FAIL_COND_V(!fd, 0);
	MutexLock lock(fd->mutex);
	int face_count = 0;
	if (fd->data_ptr && (fd->data_size > 0)) {
		
#ifdef MODULE_FREETYPE_ENABLED