I found a handful of probables like this - I will try to manually clean up & then retry the audit
We rolled out a fix on 12 Dec and the one that I found pre-cedes that. This is the relevant patch
https://gerrit.wikimedia.org/r/c/1216566
Note the underlying Smashpig allows for 2 sort values to be passed - so far I *think* 1 is enough to prevent conflict but need to keep an eye on that