obslog: use unfiltered repo for --no-graph implementation too
repo.unfiltered() is used for graph version of obslog, because if we want to
filter non-local changesets, we only have to provide --filternonlocal flag on
the command line and _nodesandmarkers() will handle filtering. But that means
for obslog without -f to work correctly we need to provide unfiltered repo to
that function. With this patch both implementations of obslog (--graph and
--no-graph) see the same repo.
Test that share-clones use the cache in the original repository.
$ . $TESTDIR/testlib/common.sh
$ hg init share-base
$ cd share-base/
$ cat >> .hg/hgrc <<EOF
> [extensions]
> evolve=
> share=
> EOF
$ hg debugbuilddag .+3:branchpoint+4*branchpoint+2
$ cd ..
$ hg --config extensions.share= share -U share-base share-client
$ cd share-client
$ hg debugupdatecache
$ test -d .hg/cache
[1]
$ test -d ../share-base/.hg/cache