$ git clone -n https://src.fedoraproject.org/rpms/R-bit.git /var/lib/mock/f40-build-789302-135702/root/chroot_tmpdir/scmroot/R-bit
Cloning into '/var/lib/mock/f40-build-789302-135702/root/chroot_tmpdir/scmroot/R-bit'...
$ git fetch origin 93c517072d2279dc5bc4d3ee421e962854927782:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-bit
 * [new ref]         93c517072d2279dc5bc4d3ee421e962854927782 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 93c5170 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild