Example of Stylistic set parameters on &

Fraunces has a fancy & character when used with stylistic set 1 enabled. I want it to be disabled as it's distracting. However, none of the settings appear to control it.

font-variant unset font-variant ss01=0 font-variant ss01=1
font-feature-settings unset & & &
font-feature-settings ss01=0 & & &
font-feature-settings ss01=1 & & &