Improve fix for PR: 19449.

Don't drop directory entries after we've found out they were outdated,
but simply do not perform timestamp checks on the at all.


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@274544 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/Zip.java

@@ -807,15 +807,17 @@ public class Zip extends MatchingTask {
                     myMapper = gm;
                 }
             }
+
+            Resource[] resources = initialResources[i];
+            if (doFilesonly) {
+                resources = selectFileResources(resources);
+            }
+            
             newerResources[i] = 
                 ResourceUtils.selectOutOfDateSources(this,
-                                                     initialResources[i],
+                                                     resources,
                                                      myMapper,
                                                      getZipScanner());
-            if (doFilesonly) {
-                newerResources[i] = selectFileResources(newerResources[i]);
-            }
-            
             needsUpdate = needsUpdate || (newerResources[i].length > 0);
 
             if (needsUpdate && !doUpdate) {