BSON Serialization Exceptions for non-Str and non-Int type dict keys

[OluAgunloye]

In workflows that allow the SelectNextStep key (the Decide step type below for example):

Issue:
One can see that BSON has an issue with the key names that aren't str or int types.

[OluAgunloye]

Comment: The issue is is referenced exactly in
https://stackoverflow.com/questions/50610433/error-handle-element-name-is-not-valid

Just avoid the use of decimals/periods in your key/property names in the SelectNextStep field.

EDIT: This isn't a true fix so I'm keeping the issue open, but it is a work around.