Don't emit constant values to the defining_anim -- only empty CompactSplines.  Otherwise, the defining_anim can have unexpected effects.
Don't emit constant values to the defining_anim -- only empty CompactSplines.  Otherwise, the defining_anim can have unexpected effects.

PiperOrigin-RevId: 196502270
Change-Id: I75e75e2d37079200a7f521f4343a0a411979d5d2

google/motive,google/motive