$ git clone -n https://src.fedoraproject.org/rpms/R-prettydoc.git /var/lib/mock/f40-build-2033029-47757/root/chroot_tmpdir/scmroot/R-prettydoc
Cloning into '/var/lib/mock/f40-build-2033029-47757/root/chroot_tmpdir/scmroot/R-prettydoc'...
$ git fetch origin 857a6f952fec007337bcac2cc2210fd574329f33:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-prettydoc
 * [new ref]         857a6f952fec007337bcac2cc2210fd574329f33 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 857a6f9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild