$ git clone -n https://src.fedoraproject.org/rpms/R-timechange.git /var/lib/mock/f40-build-789175-135676/root/chroot_tmpdir/scmroot/R-timechange
Cloning into '/var/lib/mock/f40-build-789175-135676/root/chroot_tmpdir/scmroot/R-timechange'...
$ git fetch origin c1edac22ea3a307cc3865f204e01a26e77a8ae2f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-timechange
 * [new ref]         c1edac22ea3a307cc3865f204e01a26e77a8ae2f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c1edac2 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild