Steps to reproduce:
- go to http://test.m.wikipedia.org/
- open navigation
- open settings
- select 'beta'
- save settings
- back to main page
- type "golden" into search bar
- select "Golden-crowned Sparrow" from list of search matches
- sections on this page should be expandable
- sections cannot be expanded by clicking, no arrows are visible
Note that the section toggles *do* work if you do the same steps starting from http://test.m.wikipedia.org/wiki/San_Francisco
It looks like the enabling is done from a 'mw-mf-page-loaded' event, but the handler doesn't get installed if the original page had no sections.