Overridden methods

[mainameiz]

Hello!

First of all, many thanks for all maintainers of this gem. It became a default gem for handling file uploads for many of us.

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I just noticed that carrierwave overrides some useful methods on ActiveRecord models

E.g. reload

carrierwave/lib/carrierwave/orm/activerecord.rb

Lines 87 to 90 in f15f4ba

	def reload(*)
	@_mounters = nil
	super
	end

And initialize_dup

carrierwave/lib/carrierwave/orm/activerecord.rb

Lines 93 to 96 in f15f4ba

	def initialize_dup(other)
	@_mounters = nil
	super
	end

So, if I also want to override these methods (and I do it 🙄) I will break some features of carrierwave. WDYT is it possible to rework this part of code? I will try to make a PR if you are OK with it.

[mshibuya]

Thanks for the idea, it would make sense to move them in anonymous module and prepend it in the model.