This could also be filed in the Custom Breadcrumb queue, wherever people see this fit. But custom breadcrumbs is creating a rather useless vertical tab option, that probably won't be touched by people and is breaking http://drupal.org/node/1087100 patterns we have for it.
Closed: outdated
2.0
User interface
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It's likely this issue predates Contrib.social: some issue and comment data are missing.