$ git clone -n https://src.fedoraproject.org/rpms/grsync.git /var/lib/mock/f40-build-802457-144016/root/chroot_tmpdir/scmroot/grsync
Cloning into '/var/lib/mock/f40-build-802457-144016/root/chroot_tmpdir/scmroot/grsync'...
$ git fetch origin 2a30153d17b883bcd4c2ad9b2b4675f40de82cc3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/grsync
 * [new ref]         2a30153d17b883bcd4c2ad9b2b4675f40de82cc3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2a30153 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild