### 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
FontFallback *fd = font_owner.get_or_null(p_font_rid);
	ERR_FAIL_COND_V(!fd, false);
	MutexLock lock(fd->mutex);
	return fd->force_autohinter;
}
void TextServerFallback::_font_set_hinting(const RID &p_font_rid, TextServer::Hinting p_hinting) {
	FontFallback *fd = font_owner.get_or_null(p_font_rid);
	ERR_FAIL_COND(!fd);
	MutexLock lock(fd->mutex);
	if (fd->hinting != p_hinting) {
		_font_clear_cache(fd);
		fd->hinting = p_hinting;
	}
}
TextServer::Hinting TextServerFallback::_font_get_hinting(const RID &p_font_rid) const {
	FontFallback *fd = font_owner.get_or_null(p_font_rid);
	ERR_FAIL_COND_V(!fd, HINTING_NONE);
	MutexLock lock(fd->mutex);
	return fd->hinting;
}
void TextServerFallback::_font_set_subpixel_positioning(const RID &p_font_rid, TextServer::SubpixelPositioning p_subpixel) {
	FontFallback *fd = font_owner.get_or_null(p_font_rid);
	ERR_FAIL_COND(!fd);
	MutexLock lock(fd->mutex);
	fd->subpixel_positioning = p_subpixel;
}
TextServer::SubpixelPositioning TextServerFallback::_font_get_subpixel_positioning(const RID &p_font_rid) const {