Fix for Currency field decimal places.

Issue #2193
Currency field with 0 decimal places was showing 2 d.p.
This was because strict formatting does not allow empty values - but in this case zero is a valid empty value.
Removing this argument instead of setting false should work. Try that and we'll merge right in -- thanks! Also, open a secondary PR against the '2.x' branch as we're preparing a Pods 2.5 release that will go out before Pods 3.0.