and second part of fix for skipping

Author: cowtowncoder

protobuf/src/main/java/com/fasterxml/jackson/dataformat/protobuf/ProtobufParser.java

@@ -1086,6 +1086,7 @@ public String nextFieldName() throws IOException
                 if (_skipUnknownField(id, wireType) != JsonToken.FIELD_NAME) {
                     return null;
                 }
+                // sub-optimal as skip method already set it, but:
             }
             String name = _currentField.name;
             _parsingContext.setCurrentName(name);
@@ -1119,9 +1120,10 @@ public String nextFieldName() throws IOException
 
             ProtobufField f = _findField(id);
             if (f == null) {
-                _skipUnknownField(id, wireType);
-                // may or may not match, but let caller figure it out
-                return null;
+                if (_skipUnknownField(id, wireType) != JsonToken.FIELD_NAME) {
+                    return null;
+                }
+                // sub-optimal as skip method already set it, but:
             }
             final String name = _currentField.name;
             _parsingContext.setCurrentName(name);