Originally, see T13367.

When you "Save Query" from an "ApplicationSearch" UI, you're taken to a separate controller in /search/. This controller can only send you back to the generic ApplicationSearch URI for the given SearchEngine, even if you came from a specialized URI.

For example, in Phortune → (Some Account) → Orders → View All Orders, the "Save Query" loses the /account/123/ state in the URI.

This is very low-impact and a bit tricky to resolve. Likely, the PhabricatorSearchEditController behavior needs to be merged into PhabricatorApplicationSearchController so all of the behavior can be accessed via routing from getQueryURIPattern().