$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-design.git /var/lib/mock/f39-build-1542520-36519/root/chroot_tmpdir/scmroot/gap-pkg-design
Cloning into '/var/lib/mock/f39-build-1542520-36519/root/chroot_tmpdir/scmroot/gap-pkg-design'...
$ git fetch origin 87857ebc395bad7e32c27dd32c8032cb3320ff11:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-design
 * [new ref]         87857ebc395bad7e32c27dd32c8032cb3320ff11 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 87857eb Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild