I did fork the repo and worked on it over the weekend. It seems to
work now. At the moment, the changes are only locally, but I can push
and send you a pull request if there is interest.
Also would appreciate some feedback as the tests didn't give me enough
guidance due to mocking (i.e., they would pass and the calls would
still fail). Only after wrapping the params into { :params =>
params }, everything seems to be as expected. No further testing was
done, as I don't use rsolr-ext myself (just rsolr, which works great
for me).
One more fix: the 'RSolr::Ext response should provide facet helpers'
was failing for me in 0.12.1. Changing mock_query_response fixed it.
Andreas