Target is executed even when AfterTargets are skipped

[TFTomSun]

Given is a target definition like this:

<Target Name="TestIssueTarget" AfterTargets="GenerateNuspec">
      <Message Text="TestIssueTarget was executed"></Message>
    </Target>

If GenerateNuspec was skipped, because everything is up to date, I would expect the TestIssueTarget to be skipped as well. Unfortunately thats not the case. The TestIssueTarget is always executed, even if the build system detected that GenerateNuspec can be skipped.

If this is the intended behavior, how can I achieve what I am aiming to?

[benvillalobos]

Team Triage: This is by design because the idea behind incremental build is that it doesn't matter if it executed or not, what matters is whether the inputs are newer than the outputs (checked via timestamp). So whether a target skipped is not observable outside that target. What you can do is add inputs and outputs to your target with an input that is output by the GenerateNuspec target.