Solution cloning breaks a native compilation when @DeepPlanningClone is on an interface

[rsynek]

Describe the bug
Native compilation fails due to a complex solution cloning.

Error: Discovered unresolved method during parsing: ai.timefold.model.fieldservicerouting.solver.domain.SolverVehicleRoutePlan$Timefold$SolutionCloner.$cloneai_timefold_model_fieldservicerouting_solver_domain_SolverVisitable(ai.timefold.model.fieldservicerouting.solver.domain.SolverVisitable, java.util.Map). This error is reported at image build time because class ai.timefold.model.fieldservicerouting.solver.domain.SolverVehicleRoutePlan$Timefold$SolutionCloner is registered for linking at image build time by command line and command line.
Error encountered while parsing ai.timefold.model.fieldservicerouting.solver.domain.SolverVehicleRoutePlan$Timefold$SolutionCloner.$cloneai_timefold_model_fieldservicerouting_solver_domain_RouteGraph(Unknown Source) 
Parsing context:
   at ai.timefold.model.fieldservicerouting.solver.domain.SolverVehicleRoutePlan$Timefold$SolutionCloner.cloneSolutionRun(Unknown Source)
   at ai.timefold.model.fieldservicerouting.solver.domain.SolverVehicleRoutePlan$Timefold$SolutionCloner.cloneSolution(Unknown Source)
   at ai.timefold.solver.core.impl.domain.variable.listener.support.violation.SolutionTracker.cloneSolution(SolutionTracker.java:94)
   at ai.timefold.solver.core.impl.domain.variable.listener.support.violation.SolutionTracker.setAfterMoveSolution(SolutionTracker.java:66)
   at ai.timefold.solver.core.impl.score.director.AbstractScoreDirector.doAndProcessMove(AbstractScoreDirector.java:230)
   at ai.timefold.solver.core.impl.score.director.InnerScoreDirector.doAndProcessMove(InnerScoreDirector.java:143)
   at ai.timefold.model.fieldservicerouting.solver.recommendation.VisitGroupPlacement.decideMove(VisitGroupPlacement.java:116)
   at ai.timefold.model.fieldservicerouting.solver.recommendation.VisitGroupPlacement.findBestVisitAssignment(VisitGroupPlacement.java:88)
   at ai.timefold.model.fieldservicerouting.solver.recommendation.VisitGroupPlacement.findBestVisitGroupAssignment(VisitGroupPlacement.java:63)
   at ai.timefold.model.fieldservicerouting.solver.recommendation.VisitGroupPlacement.<init>(VisitGroupPlacement.java:47)
   at ai.timefold.model.fieldservicerouting.solver.recommendation.VisitGroupRecommender.createPlacement(VisitGroupRecommender.java:23)
   at ai.timefold.model.fieldservicerouting.solver.recommendation.VisitGroupRecommender.createPlacement(VisitGroupRecommender.java:13)
   at ai.timefold.model.fieldservicerouting.solver.recommendation.AbstractRecommender.recommendAssignment(AbstractRecommender.java:68)
   at ai.timefold.model.fieldservicerouting.solver.recommendation.AbstractRecommender.recommendAssignment(AbstractRecommender.java:55)
   at ai.timefold.model.fieldservicerouting.solver.recommendation.VisitRecommender.recommendAssignment(VisitRecommender.java:13)
   at ai.timefold.model.fieldservicerouting.solver.VehicleRouteRecommendationService.recommendVehicleShiftForTimeWindow(VehicleRouteRecommendationService.java:127)
   at ai.timefold.model.fieldservicerouting.solver.VehicleRouteRecommendationService.recommendTimeWindowsForVisit(VehicleRouteRecommendationService.java:103)
   at ai.timefold.model.fieldservicerouting.solver.VehicleRouteRecommendationService_ClientProxy.recommendTimeWindowsForVisit(Unknown Source)
   at ai.timefold.model.fieldservicerouting.rest.VehicleRoutePlanResource.recommendTimeWindowsForVisitWithSolvedModel(VehicleRoutePlanResource.java:52)
   at ai.timefold.orbit.generated.rest.RoutePlanInput_VehicleRoutePlanResource.recommendTimeWindowsForVisitWithSolvedModel(Unknown Source)
   at root method.(Unknown Source)

To Reproduce
https://github.com/TimefoldAI/timefold-field-service-routing/tree/fix/native-compilation

mvn clean install -Dnative -Dquickly

Environment

Timefold Solver Version or Git ref:
1.15.0

Output of java -version:
Java version: 21.0.5+11-LTS, vendor version: Mandrel-23.1.5.0-Final

Output of uname -a or ver:

Additional information

Provide any and all other information which might be relevant to the issue.