diff --git a/proposal/mutant/bootstrap.bat b/proposal/mutant/bootstrap.bat
index 57c62ec56..2db03f27a 100755
--- a/proposal/mutant/bootstrap.bat
+++ b/proposal/mutant/bootstrap.bat
@@ -26,7 +26,5 @@ REM run full build using bootstrapped version
 java -jar bootstrap\lib\start.jar %*
 
 REM Use the full build as the build used by the build script
-xcopy /s dist bootstrap
+xcopy /s /y dist bootstrap
 
-REM clean up after bootstrap
-java -jar bootstrap\lib\start.jar clean
diff --git a/proposal/mutant/bootstrap.sh b/proposal/mutant/bootstrap.sh
index 2e096a9ca..8b192a1cc 100755
--- a/proposal/mutant/bootstrap.sh
+++ b/proposal/mutant/bootstrap.sh
@@ -27,5 +27,3 @@ java -jar bootstrap/lib/start.jar $*
 # Use the full build as the build used by the build script
 cp -r dist/lib bootstrap
 
-#clean up after bootstrap
-java -jar bootstrap/lib/start.jar clean
diff --git a/proposal/mutant/src/java/antcore/org/apache/ant/antcore/execution/CoreExecService.java b/proposal/mutant/src/java/antcore/org/apache/ant/antcore/execution/CoreExecService.java
index b82a6d3ab..a12ffc767 100644
--- a/proposal/mutant/src/java/antcore/org/apache/ant/antcore/execution/CoreExecService.java
+++ b/proposal/mutant/src/java/antcore/org/apache/ant/antcore/execution/CoreExecService.java
@@ -226,11 +226,13 @@ public class CoreExecService implements ExecService {
      * @param referenceName the name under which the project will be
      *      referenced.
      * @param model the project model.
+     * @param initialData the project's initial data load.
      * @exception ExecutionException if the project cannot be referenced.
      */
-    public void createProjectReference(String referenceName, Project model)
+    public void createProjectReference(String referenceName, Project model, 
+                                       Map initialData)
          throws ExecutionException {
-        frame.createProjectReference(referenceName, model);     
+        frame.createProjectReference(referenceName, model, initialData);     
     }
 
 
diff --git a/proposal/mutant/src/java/antcore/org/apache/ant/antcore/execution/Frame.java b/proposal/mutant/src/java/antcore/org/apache/ant/antcore/execution/Frame.java
index ef94bf78a..fe59c5465 100644
--- a/proposal/mutant/src/java/antcore/org/apache/ant/antcore/execution/Frame.java
+++ b/proposal/mutant/src/java/antcore/org/apache/ant/antcore/execution/Frame.java
@@ -638,18 +638,26 @@ public class Frame implements DemuxOutputReceiver {
      * @param name the name under which the project will be
      *      referenced.
      * @param project the project model.
+     * @param initialData the project's initial data load.
      * @exception ExecutionException if the project cannot be referenced.
      */
-    protected void createProjectReference(String name, Project project) 
+    protected void createProjectReference(String name, Project project,
+                                          Map initialData) 
         throws ExecutionException {
        Frame referencedFrame = createFrame(project);
 
+       if (initialData != null) {
+           referencedFrame.setInitialProperties(initialData);
+       }
+       
        // does the frame have any overrides?
        Map initialProperties = (Map) overrides.get(name);
        if (initialProperties != null) {
            referencedFrame.setInitialProperties(initialProperties);
            overrides.remove(name);
        }
+
+
         
        referencedFrames.put(name, referencedFrame);
        referencedFrame.initialize();
diff --git a/proposal/mutant/src/java/antlibs/system/org/apache/ant/antlib/system/Ref.java b/proposal/mutant/src/java/antlibs/system/org/apache/ant/antlib/system/Ref.java
index 053a29a9e..1794bd50e 100644
--- a/proposal/mutant/src/java/antlibs/system/org/apache/ant/antlib/system/Ref.java
+++ b/proposal/mutant/src/java/antlibs/system/org/apache/ant/antlib/system/Ref.java
@@ -65,7 +65,7 @@ import org.apache.ant.common.util.ExecutionException;
  * @author Conor MacNeill
  * @created 17 April 2002
  */
-public class Ref extends AbstractTask {
+public class Ref extends SubBuild {
 
     /** The project file containing the project to be referenced. */
     private File projectFile;
@@ -73,10 +73,6 @@ public class Ref extends AbstractTask {
     /** THe name under which this project is to be referenced. */
     private String name;
 
-    /** The core's ExecutionService for running builds and external programs */
-    private ExecService execService;
-
-
     /**
      * Initialise this task
      *
@@ -88,7 +84,6 @@ public class Ref extends AbstractTask {
     public void init(AntContext context, String componentType)
          throws ExecutionException {
         super.init(context, componentType);
-        execService = (ExecService) getCoreService(ExecService.class);
     }
 
 
@@ -119,9 +114,9 @@ public class Ref extends AbstractTask {
      * @exception ExecutionException if the project cannot be referenced.
      */
     public void execute() throws ExecutionException {
-        Project model = execService.parseXMLBuildFile(projectFile);
+        Project model = getExecService().parseXMLBuildFile(projectFile);
 
-        execService.createProjectReference(name, model);
+        getExecService().createProjectReference(name, model, getProperties());
     }
 }
 
diff --git a/proposal/mutant/src/java/common/org/apache/ant/common/service/ExecService.java b/proposal/mutant/src/java/common/org/apache/ant/common/service/ExecService.java
index 1621ef943..7f73f59aa 100644
--- a/proposal/mutant/src/java/common/org/apache/ant/common/service/ExecService.java
+++ b/proposal/mutant/src/java/common/org/apache/ant/common/service/ExecService.java
@@ -82,10 +82,11 @@ public interface ExecService {
      * @param referenceName the name under which the project will be
      *      referenced.
      * @param model the project model.
+     * @param initialData the project's initial data load.
      * @exception ExecutionException if the project cannot be referenced.
      */
-    void createProjectReference(String referenceName, Project model)
-         throws ExecutionException;
+    void createProjectReference(String referenceName, Project model, 
+                                Map initialData) throws ExecutionException;
 
 
     /**