The upside to the AOD bug is having the battery percentage displayed it saves me from psychically having to turn screen on******Update at YOUR own RISK******
I've just tried for myself as I use AOD as a night clock at night and I have set as "Show as Schedule " . So for this purpose I swapped to "Tap to show for 10 secs" Left it for a minute expecting it too pop back on as you've described., it never did come back on unless I tapped the screen .
****** I should inform you that I have chosen to UPDATE my AOD. and its been that way since day 1.
The AOD Charging BUG described in the OP is nothing more than having the "CHARGING " Displayed under the clock when your not connected to the Charger.....Unless you are charging.
I haven't seen or had any problems and my phone works and charges as it should.