$ git clone -n https://src.fedoraproject.org/rpms/ghc-StateVar.git /var/lib/mock/f31-build-53947-27924/root/thebuilddir/tmp/scmroot/ghc-StateVar
Cloning into '/var/lib/mock/f31-build-53947-27924/root/thebuilddir/tmp/scmroot/ghc-StateVar'...
$ git reset --hard 8efee85d3c76608efa5b3d0fdc89d36b9d771c23
HEAD is now at 8efee85 update to 1.1.1.1