GOLD-716: Add None-check to edge matching functions. All unit tests pass.
GOLD-716: Add None-check to edge matching functions. All unit tests pass.

Solinea/goldstone-server,Solinea/goldstone-server,slashk/goldstone-server,Solinea/goldstone-server,slashk/goldstone-server,Solinea/goldstone-server,slashk/goldstone-server,Solinea/goldstone-server,slashk/goldstone-server,slashk/goldstone-server