Why is there a FET from VREF1 to VREF2? It seems like that would always be a problem. We do not currently have a 200k series resistor on the VREF2 side and things seem to be working fine. This is in reference to this previous post: https://e2e.ti.com/support/interface/i2c/f/390/t/629454?tisearch=e2e-quicksearch&keymatch=PCA9306%20VREF2