Situation: installing a package is resulting in an additional package being installed even though the dependencies for the package have already been satisfied by another package. This results in two packages being installed which provide overlapping functionality. 

Example. I have installed org-plus-contrib. I then install elfeed-org, which has a dependency on org. This results in the org package being installed, but org is already installed as part of the org-plus-contrib package. 

I'm trying to work out if this is a problem with how dependencies are defined in the elfeed-org package or is it a problem with how org-plus-conrib is specifying what dependency it satisfies? Need to know in order to determine where this issue needs to be logged.

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