Edited comment in is_autofilter to propose implementation and use of const_shared_ptr.
Added typedef DataFill used to track satisfaction of AutoFilter arguments.
Using DataFlow in SatCounter and adding check for data collision via pipes.
Adding output indicator to DataFlow, initialized in AutoFilterDescriptorStub and used in SatCounter to include output information in satisfaction map.
AutoCheckout::Ready accepts no source argument. The default value could cause unintended anonymous data.
Attribution of data to source.
Broadcast tests all pass.

PROBLEM: Pipe declaration yields a deadlock.