Use type define in project pom and not type define in user pom.

git-svn-id: https://svn.apache.org/repos/asf/maven/components/trunk@163033 13f79535-47bb-0310-9956-ffa450edef68

maven-core/src/main/java/org/apache/maven/project/DefaultMavenProjectBuilder.java

@@ -168,6 +168,7 @@ public class DefaultMavenProjectBuilder
                 project = new MavenProject( userModel );
                 project.setFile( parent.getFile() );
                 project.setParent( parent );
+                project.setType( previous.getType() );
             }
 
             project.setLocalRepository( localRepository );