$ git clone -n https://src.fedoraproject.org/rpms/zerofree.git /var/lib/mock/f40-build-793521-138985/root/chroot_tmpdir/scmroot/zerofree
Cloning into '/var/lib/mock/f40-build-793521-138985/root/chroot_tmpdir/scmroot/zerofree'...
$ git fetch origin 200192e08a77e03e38692a4d1e336ddcd5032fdb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/zerofree
 * [new ref]         200192e08a77e03e38692a4d1e336ddcd5032fdb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 200192e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild