> checkStampSize 1

# move A.scala elsewhere
$ copy-file A.scala A.txt
$ delete A.scala
> checkStampSize 0

# move A.scala back
$ copy-file A.txt A.scala
$ delete A.txt
$ exists A.scala

> show Compile/sources

# if we recompile, we should regain stamp size 1
> checkStampSize 1
