Use default generator settings for child models without config

[SaaiAravindhRaja]

When a child model has no rune-config.yml, the Maven plugin passes no project config. Configuration discovery then treats a dependency's config as the primary config, so the dependency's generator namespace filter is incorrectly applied to the child model.

This change distinguishes an unspecified config path from a project that explicitly has no config. Child projects without a config now use the default generator settings while still loading dependency namespace metadata needed for serialization and schema configuration.

Fixes #1334

Verification

• mvn -B clean package
• Python namespace checks: 53 tests passed

Type of change

• Bug fix (non-breaking change which fixes an issue)

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[SimonCockx]

Hi @SaaiAravindhRaja, this issue has already been addressed in #1337 and #1339 and the fix has been released in DSL 10.4.0 and DSL 9.87.0.

The corresponding issue should have been closed - sorry for missing it. Out of curiosity, have you ran into this issue after upgrading to one of the above DSL versions?