outgoing: fix possible filtering crash in outgoing (
issue3814)
If there is no outgoiing changesets but we have filtered revision in outgoing.excluded
We run into a filtering related crash. The excluded revision should not be there
in the first place but discovery need cleanup in default, not stable.
test: display used python hash seed
We keep using a random seed for each run, but we "compute" it ourself to be able
to reproduce a failed test run.