[PATCH 6/9] object-file: only register submodule ODB if needed

In a35e03dee0 ("submodule: lazily add submodule ODBs as alternates",
2021-09-08), Git was taught to add all known submodule ODBs as
alternates when attempting to read an object that doesn't exist, as a
fallback for when a submodule object is read as if it were in
the_repository. However, this behavior wasn't restricted to happen only
when reading from the_repository. Fix this.

Signed-off-by: Jonathan Tan <redacted>
---
 object-file.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/object-file.c b/object-file.c
index 621b121bcb..ab861dfdeb 100644
--- a/object-file.c
+++ b/object-file.c

@@ -1593,7 +1593,8 @@ static int do_oid_object_info_extended(struct repository *r,
 				break;
 		}
 
-		if (register_all_submodule_odb_as_alternates())
+		if (r == the_repository &&
+		    register_all_submodule_odb_as_alternates())
 			/* We added some alternates; retry */
 			continue;
 

-- 
2.33.0.464.g1972c5931b-goog