Fix split selection for 3P launcher with animations off

* When animations were off, the currentState in
FallbackRecentsStateController is incorrect (we didn't need
that check at all)
* Surfaced a bug in MultiValueUpdateListener that is being
fixed in ag/26416537

Test: 1P + 3P launcher all of the following:
starting split from overview with animations and without
rotation
selecting second app before and after rotation
Fixes: 327346105
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:b274152194799639febe58c4fa1daa896595fd8c)
Merged-In: I4f19119c30a8669bba6ced06e30773f085a78047
Change-Id: I4f19119c30a8669bba6ced06e30773f085a78047