$ git clone -n https://src.fedoraproject.org/rpms/fractal.git /var/lib/mock/f40-build-2272284-54919/root/chroot_tmpdir/scmroot/fractal
Cloning into '/var/lib/mock/f40-build-2272284-54919/root/chroot_tmpdir/scmroot/fractal'...
$ git fetch origin ad4b8c575ee17eaa39babda8b86372016a43a653:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fractal
 * [new ref]         ad4b8c575ee17eaa39babda8b86372016a43a653 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ad4b8c5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild