clear the cached directory scanner when cloning an abstractfileset

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@277681 13f79535-47bb-0310-9956-ffa450edef68

build.xml

@@ -333,7 +333,6 @@
     <exclude unless="run.failing.tests" name="${optional.package}/jdepend/JDependTest.java"/>
     <exclude unless="run.failing.tests" name="${optional.package}/DotnetTest.java"/>
     <exclude unless="run.failing.tests" name="${optional.package}/WsdlToDotnetTest.java"/>
-    <exclude unless="run.failing.tests" name="${ant.package}/taskdefs/CloneTest.java"/>
   </patternset>
 
   <!--

src/main/org/apache/tools/ant/types/AbstractFileSet.java

@@ -784,6 +784,7 @@ public abstract class AbstractFileSet extends DataType
                         .addElement(((PatternSet) e.nextElement()).clone());
                 }
                 fs.selectors = (Vector) fs.selectors.clone();
+                fs.directoryScanner = null; // Clear the cached directory scanner
                 return fs;
             } catch (CloneNotSupportedException e) {
                 throw new BuildException(e);