Stop object movement and restore previous object position?

Credit to Alexander for suggesting using physics ghost bodies.

I want to prevent certain objects passing through other objects, using physics ghost bodies.
How do I use restore previous object position? I checked object puzzles, but
none mentioned reversing value/inputs.

My physic puzzles:

My movement puzzles:

When I tried put in the movement puzzles under the detect collision puzzles, it caused my character to teleport away instead of preventing it going through objects.