$ git clone -n https://src.fedoraproject.org/rpms/root.git /var/lib/mock/f40-build-2304902-57051/root/chroot_tmpdir/scmroot/root
Cloning into '/var/lib/mock/f40-build-2304902-57051/root/chroot_tmpdir/scmroot/root'...
$ git fetch origin 277c592ff22f672d0807876d6bf5188c23b39d66:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/root
 * [new ref]         277c592ff22f672d0807876d6bf5188c23b39d66 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 277c592 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild