Objective c Restkit多对多关系会导致对象重复

我正在为我的应用程序使用RestKit发行版/0.10.0分支。我正在使用CoreData和RestKit的对象映射功能来加载/同步数据。我正在加载的XML数据如下所示（简化）：

页面实体有许多标记，一个标记可以属于多个页面。因此，我将双方的关系设定为多方面的。从页面到标记的删除规则是级联的。从标签到页面，它是无效的

映射设置：

//Tag mapping
RKManagedObjectMapping* tagMapping = [RKManagedObjectMapping mappingForClass:[Tag class] inManagedObjectStore:[RKManagedObjectStore defaultObjectStore]];
tagMapping.setDefaultValueForMissingAttributes = YES;
tagMapping.primaryKeyAttribute = @"id";
[tagMapping mapKeyPathsToAttributes:@"type",@"type",@"text",@"name",@"id",@"id", nil];

//Page mapping
RKManagedObjectMapping* pageMapping = [RKManagedObjectMapping mappingForClass:[Page class] inManagedObjectStore:[RKManagedObjectStore defaultObjectStore]];    
pageMapping.primaryKeyAttribute = @"id";
[pageMapping mapKeyPathsToAttributes:@"id",@"id",@"title",@"title",nil];
[pageMapping mapKeyPath:@"meta.tags.tag" toRelationship:@"tags"  withMapping:tagMapping];
pageMapping.setNilForMissingRelationships = YES;
pageMapping.setDefaultValueForMissingAttributes = YES;

//Root mapping
RKObjectMapping* rootMapping = [RKObjectMapping mappingForClass:[NSMutableDictionary class]];
[rootMapping mapKeyPath:@"iphoneSync.pages.page" toRelationship:@"pages" withMapping:pageMapping];

//RKObjectManager
RKManagedObjectStore* mainManagedObjectStore = [RKManagedObjectStore objectStoreWithStoreFilename:OBJECT_STORE_FILE];
RKObjectManager* objectManager = [RKObjectManager objectManagerWithBaseURL:baseURL];
[RKObjectManager setSharedManager:objectManager];
objectManager.acceptMIMEType = RKMIMETypeXML;
objectManager.serializationMIMEType = RKMIMETypeXML;
objectManager.objectStore = mainManagedObjectStore;
objectManager.objectStore.cacheStrategy = [RKInMemoryManagedObjectCache new];
objectManager.client.cachePolicy = RKRequestCachePolicyNone;

[objectManager.mappingProvider addObjectMapping:rootMapping];    
[objectManager.mappingProvider addObjectMapping:pageMapping];
[objectManager.mappingProvider addObjectMapping:tagMapping];

然后我像这样加载它：

[objectManager loadObjectsAtResourcePath:@"/" usingBlock:^(RKObjectLoader* loader) {
    loader.objectMapping = [[RKObjectManager sharedManager].mappingProvider objectMappingForClass:[NSMutableDictionary class]];
}];

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对象已正确加载和映射，但ID为16和ID为20的标记在数据库中存储了两次（每个页面实体一个）。但我希望它们是不同的，这样具有相同ID的标记只存储一次。我做错了什么？

这个问题已经解决了。这是RestKit中的一个bug。看见

---

克隆开发分支的最新版本以获得工作版本。

此问题已解决。这是RestKit中的一个bug。看见

---

克隆开发分支的最新版本以获得一个工作版本。

甚至可以使用RestKit与不同的对象进行多对多映射吗@jeffarena？甚至可以使用RestKit对不同的对象进行多对多映射吗@杰弗雷纳？

//Tag mapping
RKManagedObjectMapping* tagMapping = [RKManagedObjectMapping mappingForClass:[Tag class] inManagedObjectStore:[RKManagedObjectStore defaultObjectStore]];
tagMapping.setDefaultValueForMissingAttributes = YES;
tagMapping.primaryKeyAttribute = @"id";
[tagMapping mapKeyPathsToAttributes:@"type",@"type",@"text",@"name",@"id",@"id", nil];

//Page mapping
RKManagedObjectMapping* pageMapping = [RKManagedObjectMapping mappingForClass:[Page class] inManagedObjectStore:[RKManagedObjectStore defaultObjectStore]];    
pageMapping.primaryKeyAttribute = @"id";
[pageMapping mapKeyPathsToAttributes:@"id",@"id",@"title",@"title",nil];
[pageMapping mapKeyPath:@"meta.tags.tag" toRelationship:@"tags"  withMapping:tagMapping];
pageMapping.setNilForMissingRelationships = YES;
pageMapping.setDefaultValueForMissingAttributes = YES;

//Root mapping
RKObjectMapping* rootMapping = [RKObjectMapping mappingForClass:[NSMutableDictionary class]];
[rootMapping mapKeyPath:@"iphoneSync.pages.page" toRelationship:@"pages" withMapping:pageMapping];

//RKObjectManager
RKManagedObjectStore* mainManagedObjectStore = [RKManagedObjectStore objectStoreWithStoreFilename:OBJECT_STORE_FILE];
RKObjectManager* objectManager = [RKObjectManager objectManagerWithBaseURL:baseURL];
[RKObjectManager setSharedManager:objectManager];
objectManager.acceptMIMEType = RKMIMETypeXML;
objectManager.serializationMIMEType = RKMIMETypeXML;
objectManager.objectStore = mainManagedObjectStore;
objectManager.objectStore.cacheStrategy = [RKInMemoryManagedObjectCache new];
objectManager.client.cachePolicy = RKRequestCachePolicyNone;

[objectManager.mappingProvider addObjectMapping:rootMapping];    
[objectManager.mappingProvider addObjectMapping:pageMapping];
[objectManager.mappingProvider addObjectMapping:tagMapping];

[objectManager loadObjectsAtResourcePath:@"/" usingBlock:^(RKObjectLoader* loader) {
    loader.objectMapping = [[RKObjectManager sharedManager].mappingProvider objectMappingForClass:[NSMutableDictionary class]];
}];