How will a Caseta Switch react to being back fed

[Stokems]

In this scenario the potential exists for a Caseta switch (no neutral) to be back fed on the load side of the switch without the switch being turned on. How will the Caseta switch behave in this scenario?

[randyc]

My guess is the switch is going to be confused. When you initially power up the switch, it determines that pigtail A is power in. They you back feed and now pigtail B is power in.

I'm not sure what the application is but I would not use an electronic switch.

[Stokems]

Ok so when the switch is initially powered on, it determines which tail is line and which tail is load? this suggests a sequence is performed by the switch internally. Does the switch then “remember” which tail was assigned line vs load?

Would using the PD-10NXD-XX where the red wire is the expected load negate the confusion of the switch. Could installing a diode on the load side be the protection for the switch assuming there isn’t some sort of protection built into switch already?