well...did some more source review and I can add some lines to filter the nodump clashes. However I've already spotted an issue when fully merging the not-removed-parent/clone relationship sets, so I most likely enable the nodump-overwrite-with-good-checksum for all nodumps (independently from the given nodump mode). So after this adjustment you will get prompts for nodump overwrites but no more for parent/clone clashs (at least not for the nodump sets). It's the cleaner solution imo.