[166705] XML Editor "Save As" causes error message in design view

bundles/org.eclipse.wst.xml.ui/src-multipage/org/eclipse/wst/xml/ui/internal/tabletree/XMLMultiPageEditorPart.java

diff --git a/bundles/org.eclipse.wst.xml.ui/src-multipage/org/eclipse/wst/xml/ui/internal/tabletree/XMLMultiPageEditorPart.java b/bundles/org.eclipse.wst.xml.ui/src-multipage/org/eclipse/wst/xml/ui/internal/tabletree/XMLMultiPageEditorPart.java
index fc55a2d..c403505 100644
--- a/bundles/org.eclipse.wst.xml.ui/src-multipage/org/eclipse/wst/xml/ui/internal/tabletree/XMLMultiPageEditorPart.java
+++ b/bundles/org.eclipse.wst.xml.ui/src-multipage/org/eclipse/wst/xml/ui/internal/tabletree/XMLMultiPageEditorPart.java
@@ -619,6 +619,13 @@
 	 */
 	public void doSave(IProgressMonitor monitor) {
 		fTextEditor.doSave(monitor);
+		/*
+		 * Update the design viewer since the editor input would have changed
+		 * to the new file.
+		 */
+		if (fDesignViewer != null) {
+			fDesignViewer.setDocument(getDocument());
+		}
 	}
 
 	/*