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					@ -30,14 +30,4 @@ class DiffCallBack( | 
				
			
			
		
	
		
		
			
				
					
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					                && oldItem.enabled == newItem.enabled | 
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					                && oldItem.enabled == newItem.enabled | 
				
			
			
		
	
		
		
			
				
					
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					    } | 
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					    } | 
				
			
			
		
	
		
		
			
				
					
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					    override fun getChangePayload(oldItemPosition: Int, newItemPosition: Int): Any? { | 
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					        val oldItem = oldItems[oldItemPosition] | 
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					        val newItem = newItems[newItemPosition] | 
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					        return when { | 
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					            oldItem.bookSourceName == newItem.bookSourceName | 
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					                    && oldItem.bookSourceGroup == newItem.bookSourceGroup | 
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					                    && oldItem.enabled != newItem.enabled -> 2 | 
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					            else -> null | 
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					        } | 
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					    } | 
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					} | 
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					} |