$ git clone -n https://src.fedoraproject.org/rpms/R-ps.git /var/lib/mock/f40-build-789545-135900/root/chroot_tmpdir/scmroot/R-ps
Cloning into '/var/lib/mock/f40-build-789545-135900/root/chroot_tmpdir/scmroot/R-ps'...
$ git fetch origin 278c3e86cb870d471611b0af6c6ea645fd75a71e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-ps
 * [new ref]         278c3e86cb870d471611b0af6c6ea645fd75a71e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 278c3e8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild