Merge branch 'bs/maint-rename-populate-filespec' into maint

* bs/maint-rename-populate-filespec:
  Rename detection: Avoid repeated filespec population
diff --git a/diffcore-rename.c b/diffcore-rename.c
index 168a95b..0b0d6b8 100644
--- a/diffcore-rename.c
+++ b/diffcore-rename.c
@@ -153,9 +153,9 @@
 	 * 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 @@
 	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,