Added by Michael Moll almost 2 years ago.
Updated about 1 year ago.
Is duplicate of
Added by Dominic Cleal almost 2 years ago
Fixes #21099 - Replace redirect_to :back with redirect_back
Some instances of process_success/error with :back as a redirect alsoneed changing, and the redirect_back_or_to helper should be deprecatedand replaced throughout with redirect_back too.
Applied in changeset a0969d71c1c569eff30e792726b9fb081b2ee34c.
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