$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-factint.git /var/lib/mock/f40-build-2590655-62633/root/chroot_tmpdir/scmroot/gap-pkg-factint
Cloning into '/var/lib/mock/f40-build-2590655-62633/root/chroot_tmpdir/scmroot/gap-pkg-factint'...
$ git fetch origin d0c9cd53126d6ec924bab58bd53dd463b88f6513:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-factint
 * [new ref]         d0c9cd53126d6ec924bab58bd53dd463b88f6513 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d0c9cd5 Rebuild for gap 4.13.0