Maybe operator is case sensitive (in contrast to SQL and my naive user expectation)

[corneliusroemer]

I finally had a use case for the maybe operator so tried it out.

But my queries with maybe(T111C) returned 0 sequences and unfortunately not even an error. So did maybe[T111C] (I was thinking this might be analogous to [1-of: xxx]

After a bit of digging, I found that I had to capitalize MAYBE(). This is a bit unexpected - might be good to allow queries to be case insentive in general. Either cast everything to upper or lower case.