M moves cause an incorrect virtual 2x2 reconstruction in the virtual replay

[bohdancho]

Attempting to do M moves on virtual 2x2 (with x, ., 5, 6 keys) results in R/L moves on the cube, but logs x/x' in the reconstruction.

How to reproduce:

1. Change the puzzle to "Input", input the scramble R2 and select scramble type WCA>2x2x2
2. Start the solve, press 5 twice to solve the cube
3. Open the virtual replay of the solve
4. Notice how the cube isn't solved at the end of the replay

P.S. I also noticed that if I move "handmarks" on 3x3 by pressing 4 and 7, make a lot of random moves very quickly and then solve the cube, it also results in an incorrect replay, but unfortunately I wasn't able to reproduce it consistently or identify what exactly causes it.