Minor Description
If you have h:commandButtons that have f:params with identical names but different values, we render oamSubmit code to supply the correct value upon submit. However, the submitted field is no longer the button's client ID but "clientID" + "_idcl". The button renderer's decoder needs to look for that field as well to handle this situation. It looks to me as though commandLink's renderer was updated to handle this situation, but not commandButton's.