Fix to the bug #518

[ernstc]

Added check on the model type before it proceeds accessing the property with its getter or setter.
The exception is thrown because it tries to get the value of a property defined on a different type.

Given two commands A and B, where B is sub command of A, bot commands define an argument property. In this case it tries to get the value of the argument property defined in A from the model of type B. This thows the exception described in the bug #518.

[codecov]

Codecov Report

Merging #519 (99c5417) into main (63a43d5) will increase coverage by 0.02%.
The diff coverage is 100.00%.

❗ Current head 99c5417 differs from pull request most recent head 1c89f04. Consider uploading reports for the commit 1c89f04 to get more accurate results

@@            Coverage Diff             @@
##             main     #519      +/-   ##
==========================================
+ Coverage   82.28%   82.30%   +0.02%     
==========================================
  Files         106      106              
  Lines        3302     3306       +4     
==========================================
+ Hits         2717     2721       +4     
  Misses        585      585              

Impacted Files	Coverage Δ
...neUtils/Conventions/ArgumentAttributeConvention.cs	91.07% <100.00%> (+0.33%)	⬆️

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[natemcmaster]

Thanks for sending a PR. Would you mind adding a test case? It looks like you basically wrote them in the issue description of #518

[ernstc]

Hi @natemcmaster, I have added the tests relative to the issue.

[natemcmaster]

Thanks @ernstc !