Animator component gets disabled going into Editor Play mode while AW preview is playing.

repro:
-create a new 2D project
-import attached sprites.unitypackage
-drag the 2 sprites into the Scene view
-click the Editor Play… both sprites play properly
-click Stop
-open the AW
-select the first sprite
-click play in the AW (preview of the first sprite plays)
-while the clip is playing, select the second sprite (preview of the second sprite plays)
-re-select sprite #1, then #2 again… (playback preview switches with selection)
-while still in preview play mode in the AW, click the Editor Play button…
bug: both sprites are no longer animated in Editor Play mode.
reason: the Animator components on both sprites are disabled, bad!
workaround: manually re-enable Animator components.