Prevent infinite recursion when resolving complex relationships #495
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As raised in #418, when checking the relationships between resources where the relationships are a bit more complex (forward and backward edges between >2 resources), it is possible for
RSpec::Puppet::ManifestMatchers::CreateGeneric#relationship_refsto get stuck in an infinite recursion loop.This PR fixes that behaviour by adding a simple guard to the recursion to prevent
relationship_refsfrom being called on the same resource multiple times.Closes #418