Fixed a data error in the online database - accidentially I've stored unitkeys identical to the vuk for ~70.000 legacy entries. I've fixed this today - now the data is correct again.
The only thing that might happen is that a lot of changes are detected and the synch-upload to the online database fails with a HTTP500 error.
This error happens only one time and the reason is that FindVUK tries to upload all the wrong unitkeys one more time to the database - so in this case just ignore the error (it's happening because the file-upload exceeds the expected limit).
Additionally I've added a post-processing check into the database so in case it happens again that VUK and a single UnitKey are identical - the UnitKey is discarded.
So it shouldn't happen again