$ git clone -n https://src.fedoraproject.org/rpms/ghc-refact.git /var/lib/mock/f38-build-side-42-init-devel-930595-28746/root/chroot_tmpdir/scmroot/ghc-refact
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-930595-28746/root/chroot_tmpdir/scmroot/ghc-refact'...
$ git fetch origin 1617599fccb4570a6534eb3f06b3753521ed0977:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-refact
 * [new ref]         1617599fccb4570a6534eb3f06b3753521ed0977 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1617599 bump release