Fix bug in AKCoreSampler
Fix bug in AKCoreSampler

Note restart in mono mode could use wrong sample.

adamnemecek/AudioKit,audiokit/AudioKit,adamnemecek/AudioKit,eljeff/AudioKit,adamnemecek/AudioKit,eljeff/AudioKit,eljeff/AudioKit,adamnemecek/AudioKit,audiokit/AudioKit,audiokit/AudioKit,eljeff/AudioKit,audiokit/AudioKit