Bugzilla 50635: fix issue in checkPreparedPages() where the same page-sequence is potentially started multiple times

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1063022 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/fop/area/RenderPagesModel.java

      *         false if the renderer doesn't support out of order
      *         rendering and there are pending pages
      */
-    protected boolean checkPreparedPages(PageViewport newPageViewport, boolean
-        renderUnresolved) {
+    protected boolean checkPreparedPages(PageViewport newPageViewport,
+                                         boolean renderUnresolved) {
+
         for (Iterator iter = prepared.iterator(); iter.hasNext();) {
             PageViewport pageViewport = (PageViewport)iter.next();
             if (pageViewport.isResolved() || renderUnresolved) {
                 if (!renderer.supportsOutOfOrder()
                         && pageViewport.getPageSequence().isFirstPage(pageViewport)) {
-                    renderer.startPageSequence(getCurrentPageSequence());
+                    renderer.startPageSequence(pageViewport.getPageSequence());
                 }
                 renderPage(pageViewport);
                 pageViewport.clear();

status.xml

       documents. Example: the fix of marks layering will be such a case when it's done.
     -->
     <release version="FOP Trunk" date="TBD">
+      <action context="Code" dev="AD" type="fix" fixes-bug="50635" due-to="mkoegler.AT.auto.tuwien.ac.at">
+        Bugfix: fix issue in RenderPagesModel.checkPreparedPages() where the same page-sequence
+        is potentially started multiple times.
+      </action>
       <action context="Code" dev="AD" type="fix" fixes-bug="50636" due-to="mkoegler.AT.auto.tuwien.ac.at">
         Bugfix: fix performance issue when adding pages, if the total number of pages
         is significantly large.