gregbell/active_admin — pull request #2515 by Daxter (2013-09-29 00:29:08+00:00)
Title: [2507] Preserve default filters!

This fixes #2507 and adds tests to ensure that's the case.

When using a hash it's simple to write over an existing filter, and it's easy to avoid that when adding the default filters in.

Before this PR there was a array of filters that we'd just append, and later only use the last of for each filter name.