Default value for Inverted counters is not set properly. 

Check with: 

```ka
%agent: A(c{=0 / += 7})

. -> A() @1
A(c{<=6}) -> A(c{+=1}) @1
```

>> KaSim --compile 

First rule is compiled into: 
A(c{=0} c__inverted{=0})+ @ 1

instead of: 
A(c{=0} c__inverted{=7})+ @ 1

