Created Within The Last Zero Days

I noticed that if I type type zero in any of the advanced search date options, the number doesn’t appear. However, I noticed that if I do this it works differently than a search in which I didn’t type zero in any of the advanced search date options.

For example, if I used advanced search to search for tasks in a particular project, if add the “created within the last” option and don’t type anything in the text box, I see tasks that were created on all dates. If I then refine that search and type zero in the “created within the last” text box, the zero is not displayed in the refined search but the search results are now only the tasks that were created today, which is what I want when I type zero.

So, is the search working correctly even though the UI is not? Should this search not work? If not, how would I find tasks created today? If I enter one in the text box, I see everything that was created today and yesterday.

Thanks!