'yes', which is the default when this option is used without any
value. Use 'on-demand' to only recurse into a populated submodule
when the superproject retrieves a commit that updates the submodule's
- reference.
+ reference to a commit that isn't already in the local submodule
+ clone.
--no-recurse-submodules::
Disable recursive fetching of submodules (this has the same effect as