Critical hits can double the damage dice twice

I found a bug in DnD beyond tonight where it is doubling crit damage dice twice.

The steps I followed are:

1. If you roll to hit in the web version and roll a nat 20, it automatically applies this to your damage dice (it highlights the damage dice in blue to show this before you roll them). 
2. If you them right click on the damage dice, you can still select "critical damage"
3. If you do select "critical damage" it will show the correct number of dice
4. However, it actually doubles the dice again before it rolls.

In my case, my base damage is 1d8+9. Following these steps what I saw was:

• I rolled a nat 20 and my damage dice changed from 1d8+9 to 2d8+9 and got highlighted blue
• I right clicked on the 2d8+9 damage dice, and changed it to "critical"
• The damage dice kept showing 2d8+9
• When I hit the roll button, it rolled 4d8+9