[Orgmode] How to change CREATED property value to inactive in org-expiry

[Manish]

Hello!

I have just spent an hour trying to figure out how to change the
timestamp added as a result of org-expiry-insinuate to inactive with
no success.  It seems to me that I need to change something in
function org-expiry-insert-created but don't know what.  I also do not
understand in which situations does an active timestamp for CREATED
property make sense.

Thanks!
-- 
Manish