[PropertyAccess] stop overwriting once a reference is reached (3rd) #13835
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I commited with a different email address in PR 13831, so here is the third attempt. Also removed unnecessary test as suggested by @Tobion
I added test cases for the scenario described in my issue. After looking through the PropertyAccessor source my conclusion was that there is no reason to overwrite parents of references, so I changed that. None of the previous test cases disagreed and my new tests also passed.
Or maybe I got it all wrong, I'm willing to learn.