Yes, Serge Batalov was kind enough to share his residues on the SR5 k's he's tested. The host id is zero - no such host exists - so you can't view it. If our user matches the residue from Serge (or anyone else who provides us with that data) then we save a task. If the residues don't match, another task is created just like any other time when we have disagreeing residues.
Those workunits are completely normal.