fetch() assumes we do not have the object.

Bugfix for the previous one.

Signed-off-by: Junio C Hamano <junkio@cox.net>

fetch.c

@@ -174,7 +174,7 @@ static int loop(void)
 		 * the queue because we needed to fetch it first.
 		 */
 		if (! (obj->flags & TO_SCAN)) {
-			if (fetch(obj->sha1)) {
+			if (!has_sha1_file(obj->sha1) && fetch(obj->sha1)) {
 				report_missing(obj->type
 					       ? obj->type
 					       : "object", obj->sha1);