hgit: make sure repository is local before checking for store type...
hgit: make sure repository is local before checking for store type
httppeer (and maybe others too) does not have a store attribute. This was
causing `hg pull` being broken on a hg repository when the extension is enabled.
localpeer.local() does returns a non-None value but I am not sure if it matters.
Differential Revision:
https://phab.mercurial-scm.org/D8217