$ git clone -n https://src.fedoraproject.org/rpms/python-click-option-group.git /var/lib/mock/f38-build-side-42-init-devel-1407448-31321/root/chroot_tmpdir/scmroot/python-click-option-group
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1407448-31321/root/chroot_tmpdir/scmroot/python-click-option-group'...
$ git fetch origin cb7adca19f497f417b197842bed66109ead4af85:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-click-option-group
 * [new ref]         cb7adca19f497f417b197842bed66109ead4af85 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb7adca Initial import (#2233084)