Garmaine Staff asked 2 years ago

Corded Dishwasher and Disposal each have own 20a circuit with dual-function breakers; however, they each go to a single receptacle that share the same 2-gang box.

Am I correct that splicing the grounds together – as one would normally do when sharing a box – would render the GFI of the dual-function breaker useless? Would the only way to appropriately resolve this be to utilize two separate single-gang boxes? Are there any exceptions to having two different circuits sharing a box yet not sharing ground?