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-rw-r--r--diff-lib.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/diff-lib.c b/diff-lib.c
index 082e249fc3..b73cc1859a 100644
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -606,10 +606,12 @@ int do_diff_cache(const struct object_id *tree_oid, struct diff_options *opt)
repo_init_revisions(opt->repo, &revs, NULL);
copy_pathspec(&revs.prune_data, &opt->pathspec);
+ diff_setup_done(&revs.diffopt);
revs.diffopt = *opt;
if (diff_cache(&revs, tree_oid, NULL, 1))
exit(128);
+ clear_pathspec(&revs.prune_data);
return 0;
}