try a third time to fix crash

modpol/orgs/orgs.lua

@@ -234,7 +234,12 @@ modpol.add_org = function(org_name, members, parent_id, properties)
       end
    end
 
-   local msg = "New org: " .. org_name .. " ["..org_id.."], parent =  ".. parent_org_id or ""..", members = "..
+   local parent_id_str = "none"
+   if parent_org_id then
+      parent_id_str = tostring(parent_org_id)
+   end
+
+   local msg = "New org: " .. org_name .. " ["..org_id.."], parent =  ".. parent_id_str ..", members = "..
       " (" .. table.concat (members, ", ") .. ")"
 
    modpol.record (org_id, msg, 'org_init')