Dodecaplanets and Logic Gates

I've been playing with the latest Dev release and here's what I've learned.
Don't expect this release next week, there is a LOT to fix.  This is anything but a complaint, just a recognition that there's some hard coding ahead before it's fully ready for prime-time.

Planets:

• If you load the dev version and see disk-shaped planets at a distance, don't be disheartened.  Dodecaplanets spawn in through the Ghosts of their disky ancestors.  You won't see them until you are up close.
• The planetary core looks cool and scary as all heck.
• Sometimes planetary cores just appear in empty sectors with no planetary matter attached.  They are insubstantial and gravity-less without planetary plates.
• In a real planet you can't currently mine down to the molten core,  It seems like the function of the core at the moment is to define a boundary of invulnerability.  The bottom row of blocks on a pentagonal planetary plate touches the core, and can't be mined.

Bug Report: Ghost Engines and Power

No engines, plenty of thrust.

Not a crash:
Observation: Under pre-0.133, removal of thrusters or power core blocks does remove the block, and reduces the mass, but the removal is not reflected in group calculations. 

I am remodeling one of my ships, and completely removed the engines. All engine blocks are gone, but the ship still reports 54232.6 in thrust.   Mass decrements as normal.

Here's where it gets weird  If I add a thruster where one has previously been,   There is no increase in thrust.  If I add a thruster where one had NOT previously been, thrust increases.