ADP5360 behaivour when the USB cable is disconnected while a charged battery is connected

What happens when the USB cable is connected from the ADP5360 while charged battery is connected? In our current design that is inspired by your datasheet, we experience a voltage drop on Vsys during 1-2 ms @ a load of 200mA. I assume it take som time for the charge control block to let the battery source the Vsys pin. 

Is there any way to prevent this behaivour meaning we do not want see a voltage drop on Vsys when a USB cable is disconnected? 

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