Comment 2 for bug 1234336

We don't quite want to fix this at the moment, as currently it allows passing of elasticsearch parameters in the query, which we rely on for testing, and for which is the only way to filter results in some ways currently. For example "price:0.00" will show all the free apps and "name:com.ubuntu.terminal" will show only the terminal app. Escaping characters would break many of the options here.

We previously had a proposed branch to fix this, but we did not merge it for these reasons.