Bug in "Operation Lambda" demo

[lesherjt@vuse.vanderbilt.edu (Tilghman Lesher)]

I just noticed a bug in the Operation Lambda demo, just
released a few days ago...

The docs say that any laser should pass through any laser
lock, but only matched lasers will open the lock.  In fact
if the laser does not match, it will not pass through the
lock.

I noticed this on either the seventh or eighth level, when
I pushed a mirror the wrong way and it should have killed
a hostage (going through a laser lock first), but it did not.

Hopefully, this is a bug only in the demo, and not in the
actual version, but until I get that, I don't know.

Tilghman