Closed Multi Input Smelter - Access Violation with Single Item

So I was experimenting and wanted to see the viability of a Multi-input smelter.
The Smelter it self works fine - with multiple inputs.

But if you try to use a single item crafting - in a multi input smelter - it causes an access violation error.
As in you try to smelt an item that uses only
1 of the 3 input slots it results in the following crash.

Starbound.Log

Code:

Info: Preparing Star::Root...
Info: Loading Star::Configuration from '..\starbound.config'
Info: Done preparing Star::Root.
Info: Client version 'Beta v. Enraged Koala - Update 6' Protocol: 642
Info: Running from : C:\Program Files (x86)\Steam\steamapps\common\Starbound\win32\starbound.exe
Info: Starting from the title screen
Info: Initialized SDL
Info: Initialized SDL Video
Info: Initialized SDL Joystick
Info: Initialized SDL Sound
Info: Opened default audio device with 44khz / 16 bit stereo audio, 2048 sample size buffer
Info: Loading Star::Root...
Info: Initializing SDL Window
Info: Created initial window 1493x872
Info: Initializing SDL Window
Info: Re-created window 1493x872
Info: Loading Star::Configuration from '..\starbound.config'
Warn: Missing inventoryIcon for chestplant1, using default
Warn: Missing inventoryIcon for barvent, using default
Warn: Missing inventoryIcon for wreckvent, using default
Info: Done loading Star::Root.
Info: Acquiring universe lock file
Warn: Recovering SimpleDatabase at device: ..\universe\universe.chunks
Warn: Recovery finished
Info: UniverseServer: Creating world alpha:-76810481:7720167:-18500906:6:4
Info: Generating 1 dungeons
Info: Generating a dungeon
Info: Placing dungeon at (1434, 394)
Warn: Perf: UniverseServer::createWorld millis: 5662
Info: UniverseServer: client connection made from local
Info: UniverseServer: Sending Handshake Challenge
Info: UniverseClient: Sending Handshake Repsonse
Info: UniverseServer: Client 'Priestness' <1> (Fifo <0x19df6f00>) connected
Warn: Perf: ClientApplication::update millis: 9355
Warn: Perf: StarApplicationBase::run.innerLoop.update millis: 9355
Warn: Perf: StarApplicationBase::run.innerLoop millis: 9454
Error: Access violation detected at 0x595256 (Read of address 0x18)
Error: Stack Trace...
  SignalHandlerImpl::sehTrampoline()
  Item::matchingDescriptors()
  Item::matches(ItemDescriptor)
  RecipeDatabase::getPreciseRecipeForMaterials(String, List<shared_ptr<Item>, deque<shared_ptr<Item>, allocator<shared_ptr<Item> > > >)
  ContainerObject::startCrafting()
  WorldServer::handleIncomingPacket(unsigned int, shared_ptr<Packet>)
  WorldServerThread::update()
  WorldServerThread::run()
  ThreadImpl::runThread(void*)
  BaseThreadInitThunk
  RtlInitializeExceptionChain
  RtlInitializeExceptionChain

Info: UniverseServer: Shutting down world alpha:-76810481:7720167:-18500906:6:4 due to inactivity

If you use all 3 input slots there is no issue.
It produces the output just fine