merge-recursive: don't segfault while handling rename clashes

diff --git a/diffcore-rename.c b/diffcore-rename.c
index 168a95b541c2d6a4679115ebc9f30b1016645b19..0b0d6b8c8c2ab8833bb5d929ef0d3cb7891ec582 100644 (file)
--- a/diffcore-rename.c
+++ b/diffcore-rename.c
@@ -153,9 +153,9 @@ static int estimate_similarity(struct diff_filespec *src,
         * is a possible size - we really should have a flag to
         * say whether the size is valid or not!)
         */
-       if (!src->cnt_data && diff_populate_filespec(src, 0))
+       if (!src->cnt_data && diff_populate_filespec(src, 1))
                return 0;
-       if (!dst->cnt_data && diff_populate_filespec(dst, 0))
+       if (!dst->cnt_data && diff_populate_filespec(dst, 1))
                return 0;
 
        max_size = ((src->size > dst->size) ? src->size : dst->size);
@@ -173,6 +173,11 @@ static int estimate_similarity(struct diff_filespec *src,
        if (base_size * (MAX_SCORE-minimum_score) < delta_size * MAX_SCORE)
                return 0;
 
+       if (!src->cnt_data && diff_populate_filespec(src, 0))
+               return 0;
+       if (!dst->cnt_data && diff_populate_filespec(dst, 0))
+               return 0;
+
        delta_limit = (unsigned long)
                (base_size * (MAX_SCORE-minimum_score) / MAX_SCORE);
        if (diffcore_count_changes(src, dst,