view .arcconfig @ 38522:54d7aaa243cc

revset: add partial support for ancestor(wdir())

It's easy, so let's make it happen. I'm not certain if 'wdir() &' should
be required. ancestors(wdir()) works without it, but ancestor(wdir()) doesn't
as of now. That's the issue of fullreposet.__contains__() vs __and__().

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