I have the following number string in one of my issue's "description" fields: "16027".
When I search for this string of text in the "Backlog" view, it yields no results.
However, when I search for the exact same string from the "Issues" view, I get the results I expect.
It appears the "Backlog" view's search functionality only searches the "title" and "ID" fields.
EXAMPLE:
Issue ONL-1 clearly has the name "Al Mamoon" in the Description:
...However, as you can see, when I search "Al Mamoon" in the backlog, this issue is doesn't appear in the results:
It's bad enough that the search won't return "@mentions", but it doesn't even appear to return *any* text in the description.