Thanks to benoit-pierre for finding this.
(see PR #3448, https://github.com/scummvm/scummvm/pull/3448)
I chose a different approach for the fix, since I wanted an easy way of detecting/preventing this for similiar cases and I also didn't want to have so much extra code in that particular script function.
Reorganize all files in sub directories. The file placement isn't as intuitive as it might be for other engines, which is probably the reason why this hasn't been done before.
athrxx
Eugene Sandulenko
mataniko