$ git clone -n https://src.fedoraproject.org/rpms/hplip.git /var/lib/mock/f39-build-1534258-36233/root/chroot_tmpdir/scmroot/hplip
Cloning into '/var/lib/mock/f39-build-1534258-36233/root/chroot_tmpdir/scmroot/hplip'...
$ git fetch origin b7a8b0b5a87a1600ca2ea8ff9ec9e5728e6a6feb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hplip
 * [new ref]         b7a8b0b5a87a1600ca2ea8ff9ec9e5728e6a6feb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7a8b0b Merge #12 `Rebase to 3.23.8`