Previously:

You'd type an address and a menu of addresses would appear below which you could select if you liked.  This list of addresses did not interfere with typing the address.

In the present version:

(1) If I try to select an address the list disappears as soon as I move the mouse - it is as if the widget was unfocussed between moving the mouse from the address box to the menu - it is impossible to select a suggested address.

(2) If I type too fast (and this isn't very fast) there is a short delay while the autocompletion updates.  This removes key presses from the address bar and the result is that only every other key press is recorded in the address bar (but the autocomplete menu gets all presses).  So "hallo" becomes "hlo".  If you type very slooowwwly it's all fine.

Turning off all forms of autocompletion fixes (2) but is a PITA