1. Land a Hull B with the cargo grid stowed.
2. Use a tractor beam to snap a 1/8th or 1 SCU box to the grid above the rear-most landing gear.
3. Note the ship expands to deployed state instantly.

What happened
Hull B can be forcibly opened to deployed grid state by snapping a box in above the rear landing gear.

What should have happened
Cargo grid should be fully deactivated upon stowing it inside the ship.

Workaround
N/A