Re: [PATCH v4 0/4] cache-tree building fix in the presence of ita entries

v4 removes the leading underscore from _EMPTY_BLOB and _EMPTY_TREE and
updates 4/4 slightly like this.

diff --git a/cache-tree.c b/cache-tree.c
index 2d50640..f28b1f4 100644
--- a/cache-tree.c
+++ b/cache-tree.c

@@ -325,6 +325,7 @@ static int update_one(struct cache_tree *it,
 		const unsigned char *sha1;
 		unsigned mode;
 		int expected_missing = 0;
+		int contains_ita = 0;
 
 		path = ce->name;
 		pathlen = ce_namelen(ce);

@@ -341,7 +342,8 @@ static int update_one(struct cache_tree *it,
 			i += sub->count;
 			sha1 = sub->cache_tree->sha1;
 			mode = S_IFDIR;
-			if (sub->cache_tree->entry_count < 0) {
+			contains_ita = sub->cache_tree->entry_count < 0;
+			if (contains_ita) {
 				to_invalidate = 1;
 				expected_missing = 1;
 			}

@@ -381,10 +383,9 @@ static int update_one(struct cache_tree *it,
 		}
 
 		/*
-		 * "sub" can be an empty tree if subentries are i-t-a.
+		 * "sub" can be an empty tree if all subentries are i-t-a.
 		 */
-		if (sub && sub->cache_tree->entry_count < 0 &&
-		    !hashcmp(sha1, EMPTY_TREE_SHA1_BIN))
+		if (contains_ita && !hashcmp(sha1, EMPTY_TREE_SHA1_BIN))
 			continue;
 
 		strbuf_grow(&buffer, entlen + 100);