For Alolan form pokemon, its Normal form's movesets are shown.

[udnp]

In this screen image case,
It seems that normal Muku's movesets are shown for Alolan.
Maybe, this is because MovesetsManager provides its getter by just pokedex number and dose not provide it by each form.

[mokahless]

This is still an issue as of 5.2.8

It is the case with my Alolan Ninetails, where it stands out the most due to the moves being entirely different.

Of note - and possibly related - is that the power-up section reverts to regular Ninetails and the Alolan form must be selected manually. This reverts back to the normal form when changing tabs.