$ git clone -n https://src.fedoraproject.org/rpms/R-gss.git /var/lib/mock/f40-build-789465-135730/root/chroot_tmpdir/scmroot/R-gss
Cloning into '/var/lib/mock/f40-build-789465-135730/root/chroot_tmpdir/scmroot/R-gss'...
$ git fetch origin 35dfc46b20565a9ad6dac85df3d9ac4836c87d47:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-gss
 * [new ref]         35dfc46b20565a9ad6dac85df3d9ac4836c87d47 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 35dfc46 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild