$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-design.git /var/lib/mock/f40-build-2278808-55286/root/chroot_tmpdir/scmroot/gap-pkg-design
Cloning into '/var/lib/mock/f40-build-2278808-55286/root/chroot_tmpdir/scmroot/gap-pkg-design'...
$ git fetch origin 3a9828b0715013e6e55e4fd55034175f172266f1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-design
 * [new ref]         3a9828b0715013e6e55e4fd55034175f172266f1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a9828b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild