When searching on Commons (regardless of the wpwbmi-search-suggestions preference setting), it doesn't seem to be possible any more to get the "containing…" option in the autocomplete dropdown.
It might just be me, but it's annoying not to be able to ctrl-click on the 'containing…' option to open the search results in a new window.
This is what it looks like on Commons (note the grey line under the search input box):
And this is what a similar search looks like on Wikivoyage (or any other wiki):
