animCurveTA update after set key

While looking into how set keyframe event works, I found that animCurveTA nodes (or any other animation curve nodes) don't get recalculated until time changes. And this makes sense considering input for animCurveTA node is time1.outTime. So here is what happens,
- You set a key on the object.
- animCurveTA node creates a key-value pair, but it does not recalculate its "output" attribute. (I think some DG node adds value to animCurveTA)
- If you change time then output will get recomputed as "input" (time value) changes and plug is marked dirty.

So animCurveTA.output is updated only when time changes, not when a key is set.