Add cancellation info to before filter docs #32253
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It is important for users to know that a render or redirect in a "before" filter causes the action to be cancelled. This was addressed in the guide, but not the API docs (http://guides.rubyonrails.org/action_controller_overview.html#filters). [ci skip]
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Summary
It is important for users to know that a render or redirect in a "before"
filter causes the action to be cancelled. This was addressed in the guide,
but not the API docs.
[ci skip]