And yes, it is *very* unlikely that someone uses a slotted live ebuild
with two branches being meaningful and managed in the same repo. Even
if such thing exists, it is broken anyway because you can't say that
re-fetching the branches back and forth is a correct solution. And it
breaks existing tools anyway.
This is done large-scale for all KDE ebuilds (in the KDE overlay) to support
master and KDE/4.x stable branch. Most use git, so no problem; some (still)
use subversion but will be migrated upstream soon(?).
Other examples are libreoffice (main tree, git) and cups (main tree,
subversion).
--
Andreas K. Huettel
Gentoo Linux developer
kde, sci, arm, tex, printing
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