Calling collection.watch() with a variable $limit pipeline argument returns odd errors, like "the limit must be specified as a number" or "the limit must be positive" if hardcoding a positive integer instead of a variable.

https://docs.mongodb.com/manual/changeStreams/#modify-change-stream-output correctly does not list $limit among the allowed pipeline stages, but shouldn't the errors above be replaced by "$limit is not permitted in a $changeStream pipeline"