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In heroku config vars on heroku dashboard settings tab, just set LOGINS_DISABLED to true.
Set to false or remove the config var entirely to restore staff logins.
Reindex solr
If search is weird, our Solr index may have gotten out of sync. Fortunately, we can (re-)build a new Solr index in only a couple minutes. Using the heroku CLI to run our rake tasks:
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