Warn of duplicated project name only if importing.

There are normal cases ( antcall) where the same build file is parsed many times
( this could be avoided now - as an optimization ).
It is a problem only in import, because of the target conflict resolution.
( targets are qualified with the project name )


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@273769 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/helper/ProjectHelper2.java

@@ -629,7 +629,8 @@ public class ProjectHelper2 extends ProjectHelper {
             String dup = project.getProperty(antFileProp);
             if (dup != null) {
                 File dupFile = new File(dup);
-                if (!dupFile.equals(context.buildFile)) {
+                if( context.ignoreProjectTag && 
+                    !dupFile.equals(context.buildFile)) {
                     project.log("Duplicated project name in import. Project "+
                         context.currentProjectName + " defined first in " +
                         dup + " and again in " + context.buildFile,