SLING-7385 - Unable to import from repository - No valid filter found

Really set the page completion status, not only toggle the widgets.
diff --git a/eclipse-ui/src/org/apache/sling/ide/eclipse/ui/internal/ImportWizardPage.java b/eclipse-ui/src/org/apache/sling/ide/eclipse/ui/internal/ImportWizardPage.java
index 6629534..bd313bb 100644
--- a/eclipse-ui/src/org/apache/sling/ide/eclipse/ui/internal/ImportWizardPage.java
+++ b/eclipse-ui/src/org/apache/sling/ide/eclipse/ui/internal/ImportWizardPage.java
@@ -322,7 +322,7 @@
 
         adjustComposite.setVisible(project != null);
         adjustComposite.getParent().layout();
-
+        
         if (importRoot != null) {
             IFile filterFile = getFilter();
 
@@ -330,7 +330,7 @@
                 importLabel.setText("Will apply import filter from /" + filterFile.getProjectRelativePath() + ".");
                 if ( !hasValidFilter ) {
                     hasValidFilter = true;
-                    determinePageCompletion();
+                    setPageComplete(determinePageCompletion());
                 }
             }
             importLabel.setVisible(true);
@@ -377,6 +377,7 @@
             setErrorMessage(repositoryError);
             return false;
         }
+        
         return true;
 	}