Note that even for a spin-1/2 field, nothing weird-looking happens at a macro level. This is because the wave-function enters twice into the expectation values

Note that even for a spin-1/2 field, nothing weird-looking happens at a macro level. This is because the wave-function enters twice into the expectation values of observables, leaving a spin-0 incoherent portion, and spin-1 vector portion.