fix(flip): make skip data private
fix(flip): make skip data private

This is unstable and might be removed or changed when refactoring, and will stay undocumented. Doesn't seem useful either.
FezVrasta/popper.js,floating-ui/floating-ui,FezVrasta/popper.js,floating-ui/floating-ui,FezVrasta/popper.js,floating-ui/floating-ui,FezVrasta/popper.js