Redmine

We've recently switched to Redmine and we mostly love it. One thing that surprised me is that there doesn't seem to be a way to filter by description (i.e. add a filter for descriptions containing some set of words). I found that this has been an open issue for 5 years and I'm wondering if this is a difficult problem to solve, or if it just hasn't managed to make its way to the top of anybody's stack? Would it be a reasonable task for somebody relatively new to RoR to tackle?