Various bugfixes on defer and processes

modpol_core/orgs/process.lua

@@ -8,13 +8,18 @@
 -- @param config Config for module
 -- @param result
 function modpol.orgs:call_module(module_slug, initiator, config, result, parent_id)
-   if not module_slug then -- if slug is false then simply run result
+   
+   -- first, if no slug, just run result
+   -- may not be necessary if we use false as default approval_module
+   if not module_slug
+      and result() then
       result()
       return
    end
-   
+
+   -- if module doesn't exist, abort
    if not modpol.modules[module_slug] then
-        modpol.ocutil.log('Error in ' .. self.name .. ':call_module -> module "' .. module_slug .. '" not found')
+      modpol.ocutil.log('Error in ' .. self.name .. ':call_module -> module "' .. tostring(module_slug) .. '" not found')
         return
     end