[dwm] splash screen

If I open xls files with command
$gnumeric some-large-file.xls
gnumeric will load a splash screen (looks like fixed size). Then
splash screen disappeared and the main window loaded. Apparent dwm
thought that the main screen was also a dialog and make it float. Is
that the intended behavior?

PS. no mwm hint error message when I tested again just now.

-- 
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