$ git clone -n https://src.fedoraproject.org/rpms/ghc-HUnit.git /var/lib/mock/f41-build-837896-159471/root/chroot_tmpdir/scmroot/ghc-HUnit
Cloning into '/var/lib/mock/f41-build-837896-159471/root/chroot_tmpdir/scmroot/ghc-HUnit'...
$ git fetch origin 005ad9071aebd00f59f62a4ff0283a831c2c7a70:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-HUnit
 * [new ref]         005ad9071aebd00f59f62a4ff0283a831c2c7a70 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 005ad90 bump release