Default merging strategy to combine individual
AuthenticationResult objects into a
single result.
The default strategy searches for a
MultiFactorAuthenticationContext child of an
AuthenticationContext child of the input context, and combines all of the
Subjectcontent from
MultiFactorAuthenticationContext#getActiveResults() into a single result.
It assigns the flow ID based on
AuthenticationContext#getAttemptedFlow(), and also preserves
the original result objects in wrapper principals within the new result.