haddock in 7.8.3

I want to change the interface to PatSyn.patSynSig, as part of fixing a bug in 7.8.2. But Haddock calls patSynSig, so there is a (fairly trivial) knock on change to Haddock Is that acceptable in a 7.8.3 release cycle? If not, I can program round it in the 7.8.3 branch. But if it's not a problem, it'd be a bit easier just to make the change in Haddock? (Really Haddock has to be co-released with GHC, since it depends on many internal GHC details.) Simon