Something went wrong during the merge, this `from_search` variable should exist here, but only `search_ref` on line 741. `search_ref` needs to be passed as part of the context, too. See https://github.com/mozilla/kuma/blob/52ee1257e3543ca6e50995d6c6f325fe1689ab25/apps/wiki/views.py#L581 for a reference.