My coach is not here for a look see.
However, I will certainly be in the running to put an inverter by-pass in mine.

In the event of a failure of the inverter that powers the refrigerator my interim plan would be join the wires as mentioned by another or to switch positions of the inverters in order to restore refrigerator power. Or, depending how easy, or not, if I can get to the back of the refrigerator by removing a panel, I would run an extension cord.

So, an inverter/charger thinky: The combination inverter chargers just aggravate me a lot more than they should. In an 86 bird I lost (it failed) a Heart inverter charger and it's replacement, a Trace. In the case of this older bird there was only one. Hence, for repairs (yes, I really believed one could get them fixed) one was without the inverter, in the event of a charger failure or vice versa. Inverter failure was not a big deal as it had a propane refrigerator.

Anyway, I thought I could do better. I wanted redundancy, and easy componet, replaceability. I bought two True Charge 40s (40 amps each) and an 80 amp PDI and wired them up together. One of the True Charge 40s acted as the brains of the outfit and would bring everything, or portions thereof, on line when needed.

I then bought an inexpensive 1000W inverter and installed it separately. Granted, 1000W isn't much but it would run, individually, the curtains, TV, ice maker, refrigerator, coffee maker, or the crock pot. Obviously, in our current coaches a larger inverter would be necessary.

Wouldn't you know it. After I set it up like that, I never had another failure but I did have a system with easily replaceable componets while on the road.

Accordingly, while I will pursue Jon's fix with a by pass switch, I will also start researching building up a system with an independent 24 volt charger and independent inverter.

Also, I think if there is an inverter failure, the charger portion will be OK. Accordingly, a simple inverter of approx 1500W should keep the refrigerator going till permanent repairs can be made.