The search field on top of the patron search results doesn't allow to search for 'Midway' or 'Patron'. It requires you to enter the codes instead. Like "CPL" will work.
I don't understand. There are dropdown lists there (to avoid the bug you are describing): https://snipboard.io/VwUp8z.jpg
We can say it's a non-issue. I was testing the datatables update when I filed this, so just tried 'all the things'. It still doesn't work, but you can get around it with the column specific filters.
This is about the global search: https://snipboard.io/M2Lgtx.jpg