$ git clone -n https://src.fedoraproject.org/rpms/krdc.git /var/lib/mock/f39-build-1677026-40954/root/chroot_tmpdir/scmroot/krdc
Cloning into '/var/lib/mock/f39-build-1677026-40954/root/chroot_tmpdir/scmroot/krdc'...
$ git fetch origin 83dffa47b8f120542a059e8dc93617eb7f5ab3cb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/krdc
 * [new ref]         83dffa47b8f120542a059e8dc93617eb7f5ab3cb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 83dffa4 23.08.2