$ git clone -n https://src.fedoraproject.org/rpms/hypre.git /var/lib/mock/f40-build-2004396-44948/root/chroot_tmpdir/scmroot/hypre
Cloning into '/var/lib/mock/f40-build-2004396-44948/root/chroot_tmpdir/scmroot/hypre'...
$ git fetch origin aedee27324b63ebeb04c888ae3ea9775af46d946:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hypre
 * [new ref]         aedee27324b63ebeb04c888ae3ea9775af46d946 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aedee27 Rebuild for scotch-7.0.4