fixing hibernate proxies problems

[pascal.verdage]

Hi,

I just commited minor changes to ExecutionImpl that fix the copy when destroying a scope : if the fields are directly accessed, the copied value is null.
You have to use the getters and setters to make the value pass through hibernate proxy.

Regards,
Pascal

[tom.baeyens]

good fix!

my bad. sometimes, you can be sure that an object is initialized when you see that before a getter or setter has been accessed. in those case sometimes i dare to use direct field access instead of getters/setters.