largefiles: avoid infinite recursive call of openlfdirstate in overriderevert When there isn't lfdirstate file in cases below, "openlfdirstate()" call "scmutil.match()" indirectly to build lfdirstate up. - subrepos disabling largefiles locally - lfdirstate file is missed accidentally This causes infinite recursive call of "openlfdirstate()" in "overriderevert()" (introduced by 79c2c29c71ae), because "openlfdirstate()" is invoked from the function overriding "scmutil.match()" itself. To avoid infinite recursive call of "openlfdirstate()" in "overriderevert()" in such cases, this patch passes "create=False" argument to "openlfdirstate()". "create=False" forcibly makes "openlfdirstate()" avoid code path to build lfdirstate up.