This reverts commit 8ab642824755b58abb8390f38a475cba05fd5e07.
apparently, upstream did *not* rename their repos, just our cache does not see, that it's broken ...
mysql_determine_majority_build_slave_architecture_id more robust
* when there are no logs, it would return empty and break the next sql syntactically
* give -1 instead, this should not match anything