Fix a bug that fails to initialize a variable

[nvcyc]

The uninitialized variable Success leads to a failure when analyzing the nested lists in property values.
This patch fixes the initialization as it is supposed to be.

Note that this patch is related to the feature stated in #282.

[yoogx]

Merged manually

[nvcyc]

Thanks for handling the pull request.
Do you know why all 4 automatic checks failed in this pull request while the same checks seem to pass after the commit is merged?
Do you consider the original problem is resolved by this patch or is it something we need to dig further?

[yoogx]

I have no idea why they passed then failed. This is something i have to consider.
At this stage you had addressed the issue in the declarative model. I suspect more would be required during instantiation. This will be discovered when you implement you own tool based on Ocarina API.