REG: Iconifying a parent frame does not iconify the child window on XToolkit

I have written an application which would popup a frame and a child window when executed. I am iconifying the frame by clicking the iconify button. In that case, Only the frame gets iconified and not the child window. This is reproducible on Linux (Cinnabar) and Solaris9 with XToolkit. This is passing on Windows and Motif Toolkit.

When the parent gets iconified, all the child windows should also get iconified. This is not reproducible on previous releases and hence a regression in tiger.

I have attached a sample test. Execute the test on XToolkit. You would see a frame and window each having a text area. Iconify the frame. If the window is still shown on the screen, the bug is reproduced.

A similar bug was filed before with Dialog (5004640). However that is specific to Motif Toolkit and occurs only when the order of showing of windows is different.