$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-hap.git /var/lib/mock/f40-build-2604351-63386/root/chroot_tmpdir/scmroot/gap-pkg-hap
Cloning into '/var/lib/mock/f40-build-2604351-63386/root/chroot_tmpdir/scmroot/gap-pkg-hap'...
$ git fetch origin 4e48c4b98b0e644b6d0c7d9214efdf4c73b34bad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-hap
 * [new ref]         4e48c4b98b0e644b6d0c7d9214efdf4c73b34bad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e48c4b Rebuild for gap 4.13.0