[501199] Enter Projects Page from Eclipse will cause the program gets
stuck

https://bugs.eclipse.org/bugs/show_bug.cgi?id=501199
diff --git a/plugins/org.eclipse.oomph.setup.ui/src/org/eclipse/oomph/setup/ui/wizards/SetupWizard.java b/plugins/org.eclipse.oomph.setup.ui/src/org/eclipse/oomph/setup/ui/wizards/SetupWizard.java
index 48a61e5..94a53bf 100644
--- a/plugins/org.eclipse.oomph.setup.ui/src/org/eclipse/oomph/setup/ui/wizards/SetupWizard.java
+++ b/plugins/org.eclipse.oomph.setup.ui/src/org/eclipse/oomph/setup/ui/wizards/SetupWizard.java
@@ -744,7 +744,14 @@
       {
         if (otherChildShell.isVisible() && excludedShell != otherChildShell && (otherChildShell.getStyle() & SWT.APPLICATION_MODAL) != 0)
         {
-          return true;
+          if (otherChildShell.getData("IndexLoaderDialogShell") != null)
+          {
+            otherChildShell.setVisible(false);
+          }
+          else
+          {
+            return true;
+          }
         }
       }
 
@@ -770,6 +777,7 @@
       }
       else
       {
+        dialogShell.setData("IndexLoaderDialogShell", progressMonitorDialog);
         dialogShell.setVisible(true);
       }
     }