issue with submodules using origin remote unexpectadly

Hi,

I've been running into an issue with submodules trying to fetch using "origin" even though the submodule does not have a remote by that name. (I recently switched the submodule remote name)

remote: Enumerating objects: 210, done.
remote: Counting objects: 100% (207/207), done.
remote: Compressing objects: 100% (54/54), done.
remote: Total 210 (delta 123), reused 197 (delta 119), pack-reused 3
Receiving objects: 100% (210/210), 107.20 KiB | 4.29 MiB/s, done.
Resolving deltas: 100% (123/123), completed with 48 local objects.
From <redacted>
...
Fetching submodule submodule
From <redacted>
   85e0da7533d9..80cc886f1187  <redacted>
Fetching submodule submodule2
fatal: 'origin' does not appear to be a git repository
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
Errors during submodule fetch:
        submodule2

I thought at first there might be some configuration value in the parent that is selecting origin, but I can 't find one. I also thought maybe its some sort of defaulting to origin but I looked through submodule code and didn't find one.

Is it just that submodule code is not resilient against changing the default remote name away from origin?

Thanks, Jake