scipy/scipy — pull request #3090 by endolith (2013-11-21 00:07:35+00:00)
Title: BUG: fftconvolve should raise error for invalid mode instead of doing nothing

BUG: fftconvolve should raise error for invalid mode instead of doing nothing

BUG: correlate's _valfrommode accepts a numerical mode without raising an error, but then correlate doesn't handle it correctly (though convolve2d and correlate2d do). I'm guessing this is for backwards compatibility?