The "Duplicate collection" command does not preserve indices for new collection - it just copies documents:
https://github.com/Studio3T/robomongo/blob/master/src/robomongo/core/mongodb/MongoClient.cpp#L456

OS: Mac OS Sierra 10.12.5
Robomongo: Robo 3T 1.1
Can someone in robomongo comment on this issue? it was created 20 months ago
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Can someone in robomongo comment on this issue? it was created 20 months ago