$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-genss.git /var/lib/mock/f40-build-2278875-55291/root/chroot_tmpdir/scmroot/gap-pkg-genss
Cloning into '/var/lib/mock/f40-build-2278875-55291/root/chroot_tmpdir/scmroot/gap-pkg-genss'...
$ git fetch origin 10f27701ca58a5c9c2a78d3d0160ae56cedc2e5d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-genss
 * [new ref]         10f27701ca58a5c9c2a78d3d0160ae56cedc2e5d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 10f2770 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild