Switched to using options instead of top level config. Use { options: { filter: 'filter string' } } now. Also modified way grunt fork is called so that we correctly use subdirectory as working directory since prior method caused some modules to build incorrectly.
Switched to using options instead of top level config. Use { options: { filter: 'filter string' } } now. Also modified way grunt fork is called so that we correctly use subdirectory as working directory since prior method caused some modules to build incorrectly.

jpommerening/grunt-submodule