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-rw-r--r--diff-lib.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/diff-lib.c b/diff-lib.c
index 0aba6cda3c..ad2a4cde74 100644
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -446,6 +446,8 @@ int run_diff_index(struct rev_info *revs, int cached)
memset(&opts, 0, sizeof(opts));
opts.head_idx = 1;
opts.index_only = cached;
+ opts.diff_index_cached = (cached &&
+ !DIFF_OPT_TST(&revs->diffopt, FIND_COPIES_HARDER));
opts.merge = 1;
opts.fn = oneway_diff;
opts.unpack_data = revs;
@@ -502,6 +504,7 @@ int do_diff_cache(const unsigned char *tree_sha1, struct diff_options *opt)
memset(&opts, 0, sizeof(opts));
opts.head_idx = 1;
opts.index_only = 1;
+ opts.diff_index_cached = !DIFF_OPT_TST(opt, FIND_COPIES_HARDER);
opts.merge = 1;
opts.fn = oneway_diff;
opts.unpack_data = &revs;