outgoing: run on filtered repo
outgoing has been using an unfiltered repo since fe67107094fd (discovery:
outgoing pass unfiltered repo to findcommonincoming (issue3776),
2013-01-28). If I'm reading code and history correctly, it should be
safe to run _outgoing() on a filtered repo since c5456b64eb07
(discovery: run discovery on filtered repository, 2015-01-07). By
running _outgoing() on a filtered repo, we can also remove the
workaround there for ignoring filtered revisions.
Our full contribution guidelines are in our wiki, please see:
https://www.mercurial-scm.org/wiki/ContributingChanges
If you just want a checklist to follow, you can go straight to
https://www.mercurial-scm.org/wiki/ContributingChanges#Submission_checklist
If you can't run the entire testsuite for some reason (it can be
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any files you've modified and run `python contrib/check-commit` on any
commits you've made (for example, `python contrib/check-commit
273ce12ad8f1` will report some style violations on a very old commit).