$ git clone -n https://src.fedoraproject.org/rpms/ghc-quickcheck-io.git /var/lib/mock/f41-build-838893-159867/root/chroot_tmpdir/scmroot/ghc-quickcheck-io
Cloning into '/var/lib/mock/f41-build-838893-159867/root/chroot_tmpdir/scmroot/ghc-quickcheck-io'...
$ git fetch origin 44f8051615d507f09e72cbe8cd22f068701fdf11:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-quickcheck-io
 * [new ref]         44f8051615d507f09e72cbe8cd22f068701fdf11 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 44f8051 bump release