ResultsList query is forgotten between page renders

[allanlasser]

Feedback from @duckduckgrayduck:

When clicking to run a non-pinned Add-On, previous context is lost- so if say my search was project:210804, and then I click to run an Add-On, it brings me back to the general search. Ideally it would save where I was last to not break context.

Just to confirm: @duckduckgrayduck your flow was to do a search on /documents, then go to the list of /addons, and then select an addon to run?

It might be that we want to persist query in a context store, instead of trying to pass it through every URL.

[duckduckgrayduck]

Flow: I click on a project, like this https://www.documentcloud.org/projects/219747-test3/
then I click on "Explore" for Add-Ons and click on an Add-On that I haven't yet pinned. This then doesn't bring me back to that project, but rather shows my general user search.