fix saveHasOneRelations when relation is a Collection
fix saveHasOneRelations when relation is a Collection

fenix007/SleepingOwlAdmin,fenix007/SleepingOwlAdmin,Malezha/SleepingOwlAdmin,Malezha/SleepingOwlAdmin,LaravelRUS/SleepingOwlAdmin,LaravelRUS/SleepingOwlAdmin,LaravelRUS/SleepingOwlAdmin,fenix007/SleepingOwlAdmin,LaravelFramework/SleepingOwl,UnQuaiz/SleepingOwlAdmin,LaravelFramework/SleepingOwl,UnQuaiz/SleepingOwlAdmin,UnQuaiz/SleepingOwlAdmin,Malezha/SleepingOwlAdmin