array_walk is sad about array cast.  It breaks pass-by-reference.

Change-Id: Iac68ec47c398a6c2b82115fa45b2204c74a408f5
when response is REFUSED, operations=null

Change-Id: I90054bd914ab53b5376b84874a24f031bec3aa22
More core prequel for Amazon

Change-Id: I4f1e8ad97b9c1775b4cff76a1147f626e6e625aa