Mema crashes occasionally when controlling it with Mema.Re surround panning

[ChristianAhrens]

macOS callstack reported with the crash:

Thread 0 Crashed:: JUCE v8.0.11: Message Thread Dispatch queue: com.apple.main-thread
0 libsystem_platform.dylib 0x19daf3578 _platform_memmove + 536
1 Mema 0x102c8f030 std::__1::__function::__func<Mema::MemaProcessor::MemaProcessor(juce::XmlElement*)::$_0::operator()(int) const::'lambda'(int, juce::MemoryBlock const&), std::__1::allocator<Mema::MemaProcessor::MemaProcessor(juce::XmlElement*)::$_0::operator()(int) const::'lambda'(int, juce::MemoryBlock const&)>, void (int, juce::MemoryBlock const&)>::operator()(int&&, juce::MemoryBlock const&) + 3624
2 Mema 0x102c7807c Mema::InterprocessConnectionImpl::messageReceived(juce::MemoryBlock const&) + 52
3 Mema 0x102de1268 juce::DataDeliveryMessage::messageCallback() + 60
4 Mema 0x102ddb2fc juce::MessageQueue::runLoopSourceCallback(void*) + 68
5 CoreFoundation 0x19db889f8 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 28
6 CoreFoundation 0x19db8898c __CFRunLoopDoSource0 + 172
7 CoreFoundation 0x19db886f8 __CFRunLoopDoSources0 + 232
8 CoreFoundation 0x19db87388 __CFRunLoopRun + 820
9 CoreFoundation 0x19dc41e34 _CFRunLoopRunSpecificWithOptions + 532
10 HIToolbox 0x1aa677790 RunCurrentEventLoopInMode + 316
11 HIToolbox 0x1aa67aab8 ReceiveNextEventCommon + 488
12 HIToolbox 0x1aa804b64 _BlockUntilNextEventMatchingListInMode + 48
13 AppKit 0x1a24a0b5c _DPSBlockUntilNextEventMatchingListInMode + 236
14 AppKit 0x1a1f9ae48 _DPSNextEvent + 588
15 AppKit 0x1a2a65d0c -[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 688
16 AppKit 0x1a2a65a18 -[NSApplication(NSEventRouting) nextEventMatchingMask:untilDate:inMode:dequeue:] + 72
17 AppKit 0x1a1f93780 -[NSApplication run] + 368
18 Mema 0x102ca69ec main + 300
19 dyld 0x19d721d54 start + 7184