memctx: substate needs to be {} instead of None
Setting substate to None was an oversight in 7cfd94ec5d30 and this patch
corrects it by setting substate to an empty dictionary which matches what
subrepo code expects.
Mercurial
=========
Mercurial is a fast, easy to use, distributed revision control tool
for software developers.
Basic install:
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
Running without installing:
$ make local # build for inplace usage
$ ./hg --version # should show the latest version
See http://mercurial.selenic.com/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.