Release 2.3.6 New Custom Mirror child app bug

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I tried to mirror contact open/closed to contact open/closed, didn't work.
Mirror contact open/closed to switch on/off, worked.
Tried mirror switch on/off to motion active/inactive, didn't work.
Mirror switch on/off to switch on/off, worked.

So many possible combinations and mappings. These examples are what I happened to have a use for so I figured I'd report what I found.