quark added a comment. Interface-wise, I'm thinking about defining `BASE` as `max(roots(ALLSRC) & ::SRC)^` to make it easier to use. REPOSITORY rHG Mercurial REVISION DETAIL https://phab.mercurial-scm.org/D1063 To: quark, #hg-reviewers, durin42 Cc: dlax, martinvonz, durin42, mercurial-devel