This was an insidious regression from a3dc1d5. Prior to that commit,
`DrawableHoldNoteHead` had `UpdateStateTransforms()` overridden, to set
the hold note head's lifetime. When that method was split into
`UpdateInitialStateTransforms()` and `UpdateHitStateTransforms()`, the
lifetime set was moved to the former.
Unfortunately, that override served two purposes: both to set the
lifetime, and to suppress hit animations which would normally be added
by the base `DrawableManiaHitObject`. That fact being missed led to
`UpdateHitStateTransforms()` hiding the hold note head immediately on
hit and with a slight delay on miss.
To resolve, explicitly override `UpdateHitStateTransforms()` and
suppress the base call, with an explanatory comment.
