[Kst] Locking crash

[George Staikos]

Quoting Barth Netterfield <netterfield at physics.utoronto.ca>:

> The answer was wrong because it used the internal scalar C_D2R (degrees to 
> radians coversion), and C_D2R was not being created until after the .kst 
file
> was read and the equation parsed.
> 
> Now the file loads correctly, and editing the equation does not trigger the 
> kdeFatal.

  That's a bit odd.  How did that fix the kdFatal?

> There still appears to be an issue if an equation references a non-existent 
> scalar (from, for example, an error in a kst file).

   We could trigger an event in the debug log, but at the same time, the nice 
thing about this is that we can have an equation be valid even though its 
dependencies aren't there, and then start working properly once they show up.  
Is that not the desired behaviour?  (Even if it is slightly buggy right 
now...)

-- 
George Staikos