$ git clone -n https://src.fedoraproject.org/rpms/R-shiny.git /var/lib/mock/f38-build-side-42-init-devel-613050-26292/root/chroot_tmpdir/scmroot/R-shiny
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-613050-26292/root/chroot_tmpdir/scmroot/R-shiny'...
$ git fetch origin 05c194ee87ef046e60cd232b19d288d16b8202bf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-shiny
 * [new ref]         05c194ee87ef046e60cd232b19d288d16b8202bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 05c194e Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild