Crash when linking a Source Relay to an ME Source Converter

1. Place Source Converter on an ME network
2. Place jar full of source
3. Place relay
4. Link jar to relay
5. link relay to converter
6. crash

https://gist.github.com/MuteTiefling/d831f84ce0f8e26e9a5482a4ba7f4a42

Fixed in 30ef7e6 and hence in 2.0.2-beta.

Awesome, thanks!