Restore last two failing tests. Closute-148 is pending

src/main/java/gr/uom/java/xmi/diff/ExtractOperationDetection.java

@@ -300,7 +300,7 @@ private boolean parentMapperContainsOperationInvocation(UMLOperationBodyMapper p
 				break;
 			}
 		}
-		if(callerMapping != null) {
+		if(callerMapping != null && (childMapper.getContainer2().isGetter() || childMapper.getContainer2().isSetter())) {
 			for(AbstractCodeMapping mapping : childMapper.getMappings()) {
 				if(mapping.getFragment1().equals(callerMapping.getFragment1())) {
 					return true;

src/test/resources/mappings/commafeed-18a7bd1fd1a83b3b8d1b245e32f78c0b4443b7a7.txt

@@ -18,26 +18,6 @@ line range:40-42==line range:46-48
 line range:42-44==line range:48-50
 line range:46-48==line range:52-54
 line range:52-54==line range:58-60
-public fetch(feed Feed) : byte[] -> private fetch(url String) : byte[]
-line range:35-35==line range:41-41
-line range:36-36==line range:42-42
-line range:39-39==line range:45-45
-line range:41-41==line range:47-47
-line range:43-43==line range:49-49
-line range:45-45==line range:51-51
-line range:47-47==line range:53-53
-line range:50-50==line range:56-56
-line range:53-53==line range:59-59
-line range:56-56==line range:62-62
-line range:34-37==line range:40-43
-line range:40-44==line range:46-50
-line range:46-48==line range:52-54
-line range:52-54==line range:58-60
-line range:34-37==line range:40-43
-line range:40-42==line range:46-48
-line range:42-44==line range:48-50
-line range:46-48==line range:52-54
-line range:52-54==line range:58-60
 public fetch(feed Feed) : byte[] -> public fetch(feed Feed) : byte[]
 line range:56-56==line range:36-36
 line range:32-32==line range:32-32