$ git clone -n https://src.fedoraproject.org/rpms/restic.git /var/lib/mock/f39-build-1507944-35322/root/chroot_tmpdir/scmroot/restic
Cloning into '/var/lib/mock/f39-build-1507944-35322/root/chroot_tmpdir/scmroot/restic'...
$ git fetch origin 80c5fa37585c81b15384c7dedb60e3f87129e9cb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/restic
 * [new ref]         80c5fa37585c81b15384c7dedb60e3f87129e9cb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 80c5fa3 Update to 0.15.2 - Closes rhbz#2160847