Reverse dependencies page shows gems once per platform

[Earlopain]

Steps to Reproduce

For example pry https://rubygems.org/gems/pry/reverse_dependencies

rest-client publishes for 4 platforms, so it appears 4 times in that list.

Expected Behavior

Show each gem only once

Current Behavior

The gem appears as often as it publishes for different platforms

Possible Solution

Would be somewhere here I suppose

rubygems.org/app/models/rubygem.rb

Line 24 in 4c88dd6

has_many :incoming_dependencies, -> { where(versions: { indexed: true, position: 0 }) }, class_name: "Dependency", inverse_of: :rubygem

Can't just add platform: "ruby" though (I think)

Additional Context

There's a bit of a problem here. it's possible for platform-specific gems to have their own set of dependencies. For example, nokogiri depends on mini_portile2 only for the generic ruby platform.

I still think it's better to dedupe instead of showing the same thing multiple times without any difference.