fix belongsTo relation is detected as nullable.

[snmatsui]

Summary

In ModelsCommand, belongs to relations are detected as nullable when this column is nullable or has not foreign key constraint.

https://github.com/barryvdh/laravel-ide-helper/blob/master/src/Console/ModelsCommand.php#L841-L842

Now read foreign keys is not reset on model loop.
For example. when column x of model A has no foreign key and column x of model B has foreign key, column x of model A may marked as not nullable because column x is recoreded as foreign key by model B.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Misc. change (internal, infrastructure, maintenance, etc.)

Checklist

• Existing tests have been adapted and/or new tests have been added
• Add a CHANGELOG.md entry
• Update the README.md
• Code style has been fixed via composer fix-style

[barryvdh]

Thanks, seems like an oversight indeed.