$ git clone -n https://src.fedoraproject.org/rpms/R-prettydoc.git /var/lib/mock/f40-build-2322011-58625/root/chroot_tmpdir/scmroot/R-prettydoc
Cloning into '/var/lib/mock/f40-build-2322011-58625/root/chroot_tmpdir/scmroot/R-prettydoc'...
$ git fetch origin cfbde42b2d828222a457df3a666d9501a424e5ed:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-prettydoc
 * [new ref]         cfbde42b2d828222a457df3a666d9501a424e5ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cfbde42 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild