Fixed bug in variable assignment

src/de/tudarmstadt/maki/simonstrator/api/component/topology/VariableAssignment.java

@@ -82,7 +82,7 @@ public final class VariableAssignment {
 	}
 
 	public EdgeID getLinkVariableBinding(final EdgeID edgeVariable) {
-		return this.getLinkVariableBinding(edgeVariable);
+		return this.linkBinding.get(edgeVariable);
 	}
 
 	public EdgeID getLinkVariableBinding(final String linkVariableId) {