#6915 Extend BPartner-Relation and add it as BPartner-Tab

#10590

fix DAO

backend/de.metas.adempiere.adempiere/base/src/main/java/de/metas/bpartner/service/impl/BPartnerDAO.java

@@ -124,7 +124,6 @@ public class BPartnerDAO implements IBPartnerDAO
 {
 	private static final Logger logger = LogManager.getLogger(BPartnerDAO.class);
 	private final IQueryBL queryBL = Services.get(IQueryBL.class);
-	private final IBPartnerDAO bPartnersRepo = Services.get(IBPartnerDAO.class);
 
 	private final GLNLoadingCache glnsLoadingCache = new GLNLoadingCache();
 	private final CCache<BPartnerId, BPartnerPrintFormatMap> printFormatsCache = CCache.<BPartnerId, BPartnerPrintFormatMap>builder()
@@ -933,7 +932,7 @@ public I_C_BPartner_Location retrieveBillToLocation(
 				.firstOnly(I_C_BP_Relation.class); // just added an UC
 		if (billtoRelation != null)
 		{
-			return InterfaceWrapperHelper.create(bPartnersRepo.getBPartnerLocationById(BPartnerLocationId.ofRepoId(billtoRelation.getC_BPartner_ID(), billtoRelation.getC_BPartnerRelation_Location_ID())), I_C_BPartner_Location.class);
+			return InterfaceWrapperHelper.create(getBPartnerLocationById(BPartnerLocationId.ofRepoId(billtoRelation.getC_BPartner_ID(), billtoRelation.getC_BPartnerRelation_Location_ID())), I_C_BPartner_Location.class);
 		}
 		return null;
 	}