largefiles: invoke "normallookup" on "lfdirstate" for merged files Before this patch, largefiles gotten from "other" revision (with conflict) at "hg merge" become "clean" unexpectedly in steps below: 1. "repo.status()" is invoked (for status check before merging) 1-1 "dirstate" entry for standinfile SF is "normal"-ed 1-2 "lfdirstate" entry of largefile LF (for SF) is "normal"-ed 2. "merge.update()" is invoked 2-1 SF is updated in the working directory (ASSUMPTION: user choice "other" at conflict) 2-2 "dirstate" entry for SF is "merge"-ed 3. "lfcommands.updatelfiles()" is invoked (by "overrides.hgmerge()") 3-1 largefile LF (for SF) is updated in the working directory 3-2 "dirstate" returns "m" for SF (by 2-2) 3-3 "lfdirstate" entry for LF is left as it is 3-4 "lfdirstate" is written into ".hg/largefiles/dirstate", and timestamp of LF is stored into "lfdirstate" file (by 1-2) (ASSUMPTION: timestamp of LF differs from one of "lfdirstate" file) Then, "hs status" treats LF as "clean", even though LF is updated by "other" revision (by 3-1), because "lfilesrepo.status()" always treats "normal"-ed files (by 1-2 and 3-4) as "clean". When state of standinfile in "dirstate" is "m", largefile should be "normallookup"-ed. This patch invokes "normallookup" on "lfdirstate" for merged files. This patch uses "[debug] dirstate.delaywrite" feature in the test, to ensure that timestamp of the largefile gotten from "other" revision is stored into ".hg/largefiles/dirstate". (for ASSUMPTION at 3-4)