The rules for stable branch releases need to be relaxed a bit to account
for projects that are late to create their branches and only do so after
the default branch has been updated. This change makes the rules more
flexible so that it is possible to release for a stable branch on master
as long as that stable branch does not exist. The primary use for this
is to release and then create the stable branch in the same patch.
Change-Id: I2d8f9abcf8ffa34e29eb7021830fd635e6e0f85f
Signed-off-by: Doug Hellmann <doug@doughellmann.com>
d287e47cfc