$ git clone -n https://src.fedoraproject.org/rpms/rstudio.git /var/lib/mock/f38-build-side-42-init-devel-1295477-30683/root/chroot_tmpdir/scmroot/rstudio
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1295477-30683/root/chroot_tmpdir/scmroot/rstudio'...
$ git fetch origin a5484c3178d467d44e3c17d2cd70ac313e75ea46:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rstudio
 * [new ref]         a5484c3178d467d44e3c17d2cd70ac313e75ea46 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a5484c3 Update to 2023.06.2+561