Whitespace trimmed for ISieveCustomFilterMethods

[lukaepti]

Problem:
Custom filter methods get called with values trimmed of spaces and tabs on either side

Expectation:
The original value passed in, with white space characters intact

[hasanmanzak]

I think a search pattern structure could be implemented to achieve something like google does: " text the text ". Or treat this as a bug and change the code and break existing consumers.

Either way, the questions are the same:

Does the risk of a braking change outways the benefit of the default trimming?
Does the open possibilities to an encapsulator structure outway the benefit of the simple value approach?

[codequality44]

I see this issue is closed, but I still see this behaviour.

Is there are solution to this currently?