Make the item creation form 100% keyboard navigable again

Prior to some change within the last couple months, I was able to use my keyboard to fully populate all of the fields in the Create Features or Create Epic pop-ups. Now, I can no longer use the spacebar to open drop-down or multiselect fields and at some point in the tabbing order focus moves to the rest of the page beneath the pop-up. By being forced to use my mouse, I have been greatly slowed down when entering new items.