Avoid completing duplicate label candidates #32
Merged
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#25 apparently uncovered another edge case in completion of labels.
Specifically with #25 applied we'd "correctly" base our suggestions for label on all available dependency keys, which are essentially duplicated, as is demonstrated in the attached test.
I am not sure yet what's the best way of approaching this (admittedly not common) situation, but I do think that user most likely wouldn't expect duplicated entries, especially when they have the exact same meaning.