This is a duplicate of Bug #1213034 in unity8... but then you could argue that dismissing the keyboard (dragging it down) should unfocus the focused text field, in which case this could be an OSK bug instead.
This is a duplicate of Bug #1213034 in unity8... but then you could argue that dismissing the keyboard (dragging it down) should unfocus the focused text field, in which case this could be an OSK bug instead.