odb: `git_odb_object` contents are never NULLvmg/empty

This is a contract that we made in the library and that we need to uphold. The
contents of a blob can never be NULL because several parts of the library (including
the filter and attributes code) expect `git_blob_rawcontent` to always return a
valid pointer.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/odb.c b/src/odb.c
index 2c19c0311..5961b35a7 100644
--- a/src/odb.c
+++ b/src/odb.c
@@ -762,12 +762,12 @@ static int hardcoded_objects(git_rawobj *raw, const git_oid *id)
 	if (!git_oid_cmp(id, &empty_blob)) {
 		raw->type = GIT_OBJ_BLOB;
 		raw->len = 0;
-		raw->data = NULL;
+		raw->data = git__calloc(1, sizeof(uint8_t));
 		return 0;
 	} else if (!git_oid_cmp(id, &empty_tree)) {
 		raw->type = GIT_OBJ_TREE;
 		raw->len = 0;
-		raw->data = NULL;
+		raw->data = git__calloc(1, sizeof(uint8_t));
 		return 0;
 	} else {
 		return GIT_ENOTFOUND;