> setup; reload

> set incOptions := incOptions.value.withApiDebug(true).withRelationsDebug(true)
> compile
$ copy-file changes/A.scala A.scala
-> compile
$ copy-file changes/UseSite.scala UseSite.scala
> run
$ copy-file changes/A2.scala A.scala
> run
$ copy-file changes/A3.scala A.scala
> run
$ copy-file changes/UseSite2.scala UseSite.scala
> run
$ copy-file changes/A4.scala A.scala
-> compile
