Add key NUMBER (only number) searching to default search filter.

Forgive me if this a duplicate, I search existing issues but nothing came up that addressed finding only the number portion of a key.

Please add a field that allows you to simply enter only the number of a issue key to the "Issue Attributes" section of the default search filter. This would also be a very handy feature to have available at all times (i.e., like the quick search or a portlet).

[behavior]
If the "All Projects" is selected then it will return every issue with that number in its key otherwise it will only return the issues having that number in its key for the selected project.