Computed property is re-calculated even when nested computed property has not changed

I have computed property A which is dependent on X (`@computedFrom('X')`) and computed property B which is dependent on A (`@computedFrom('A')`).

My question is: if x changes, but the result of A does not should B be re-calculated?
It seems that it is. Is this by design? I was not expecting it.

The issue names no file, test, or entry point. Start by reproducing the nested computed-property scenario described in the report, then trace how changes to X propagate through A and B; done means determining whether B recalculation is intended and identifying the required behavior.

Written by the indexing model from the issue text.