On Sat, Apr 10 2021, brian m. carlson wrote:

 const struct object_id null_oid;
 static const struct object_id empty_tree_oid = {
-	EMPTY_TREE_SHA1_BIN_LITERAL
+	EMPTY_TREE_SHA1_BIN_LITERAL,
+	GIT_HASH_SHA1,
 };
 static const struct object_id empty_blob_oid = {
-	EMPTY_BLOB_SHA1_BIN_LITERAL
+	EMPTY_BLOB_SHA1_BIN_LITERAL,
+	GIT_HASH_SHA1,
 };
 static const struct object_id empty_tree_oid_sha256 = {
-	EMPTY_TREE_SHA256_BIN_LITERAL
+	EMPTY_TREE_SHA256_BIN_LITERAL,
+	GIT_HASH_SHA256,
 };
 static const struct object_id empty_blob_oid_sha256 = {
-	EMPTY_BLOB_SHA256_BIN_LITERAL
+	EMPTY_BLOB_SHA256_BIN_LITERAL,
+	GIT_HASH_SHA256,
 };

In this and some other patches we're continuing to add new fields to
structs without using designated initializers.

Not a new problem at all, just a note that if you re-roll I for one
would very much appreciate starting by migrating over to that. It makes
for much easier reading in subsequent patches in this series, and in
future ones.