$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-mapclass.git /var/lib/mock/f40-build-2278966-55300/root/chroot_tmpdir/scmroot/gap-pkg-mapclass
Cloning into '/var/lib/mock/f40-build-2278966-55300/root/chroot_tmpdir/scmroot/gap-pkg-mapclass'...
$ git fetch origin 4a22e45146f49bbac14624ff74b3f22eec1691c1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-mapclass
 * [new ref]         4a22e45146f49bbac14624ff74b3f22eec1691c1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a22e45 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild