'rna_CollisionSettings_update' has a history of tagging ob for update:
rB79312c1912b4 ID_RECALC_TRANSFORM |ID_RECALC_GEOMETRY |
rBf90a2123eedc OB_RECALC_OB | OB_RECALC_DATA | OB_RECALC_TIME
Since the meaning of OB_RECALC_TIME/ID_RECALC_ANIMATION changed a bit
historically (from "please update my animation if the animation
datablock is tagged for update" to "update animation of this datablock")
this was now always overwriting user edit with animated values, making
it impossible to change those values once animated.
Thx @Sergey Sharybin (sergey) for guidance!