Hotfixes build.
Hotfixes:
- #4481 Warning message when pasting a decal on a blast door.
- #4482 Symmetry grid locking is not convenient.
- #4484 Arch does not stretch up to 16x16x16.
- #4486 Thruster stretching issues.
- #4485 Pasting children entity stacking can break game.
Thanks all!