Fix issue where sustain value would be reset after note off in legacy mode

modules/juce_audio_basics/mpe/juce_MPEInstrument.cpp

@@ -336,8 +336,8 @@ void MPEInstrument::noteOff (int midiChannel,
         note->keyState = (note->keyState == MPENote::keyDownAndSustained) ? MPENote::sustained : MPENote::off;
         note->noteOffVelocity = midiNoteOffVelocity;
 
-        // If no more notes are playing on this channel, reset the dimension values
-        if (getLastNotePlayedPtr (midiChannel) == nullptr)
+        // If no more notes are playing on this channel in mpe mode, reset the dimension values
+        if (! legacyMode.isEnabled && getLastNotePlayedPtr (midiChannel) == nullptr)
         {
             pressureDimension.lastValueReceivedOnChannel[midiChannel - 1] = MPEValue::minValue();
             pitchbendDimension.lastValueReceivedOnChannel[midiChannel - 1] = MPEValue::centreValue();
@@ -395,7 +395,7 @@ void MPEInstrument::polyAftertouch (int midiChannel, int midiNoteNumber, MPEValu
 
 MPEValue MPEInstrument::getInitialValueForNewNote (int midiChannel, MPEDimension& dimension) const
 {
-    if (getLastNotePlayedPtr (midiChannel) != nullptr)
+    if (! legacyMode.isEnabled && getLastNotePlayedPtr (midiChannel) != nullptr)
         return &dimension == &pressureDimension ? MPEValue::minValue() : MPEValue::centreValue();
 
     return dimension.lastValueReceivedOnChannel[midiChannel - 1];