setdiscovery: return anyincoming=False when remote's only head is nullid
This fixes (issue2907) a crash when using 'hg incoming --bundle' with an empty
remote repo and a non-empty local repo.
This also fixes an unreported bug that 'hg summary --remote' erroneously
reports incoming changes when the remote repo is empty and the local is not.
Also, add a test to make sure issue2907 stays fixed
# this is hack to make sure no escape characters are inserted into the output
import os
if 'TERM' in os.environ:
del os.environ['TERM']
import doctest
import mercurial.changelog
doctest.testmod(mercurial.changelog)
import mercurial.dagparser
doctest.testmod(mercurial.dagparser, optionflags=doctest.NORMALIZE_WHITESPACE)
import mercurial.match
doctest.testmod(mercurial.match)
import mercurial.store
doctest.testmod(mercurial.store)
import mercurial.ui
doctest.testmod(mercurial.ui)
import mercurial.url
doctest.testmod(mercurial.url)
import mercurial.util
doctest.testmod(mercurial.util)
import mercurial.encoding
doctest.testmod(mercurial.encoding)
import mercurial.hgweb.hgwebdir_mod
doctest.testmod(mercurial.hgweb.hgwebdir_mod)
import hgext.convert.cvsps
doctest.testmod(hgext.convert.cvsps)