Fix activation of FFTW convolution worker
It seems like FFTW convolution was disabled since 18 Jun 2018,
when my faulty commit (31d8cf90822185675ba08f86b8b42a04bc4101e4)
applied De Morgan's laws incorrectly :(
BUG:407062
dkazakov | May 1 2019, 11:16 AM |