Patch #1538878: Don't make tkSimpleDialog dialogs transient if
the parent window is withdrawn. This mirrors what dialog.tcl
does.
Will backport to 2.5.
diff --git a/Misc/NEWS b/Misc/NEWS
index 8c93519..42f0b93 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -98,6 +98,9 @@
 Library
 -------
 
+- Patch #1538878: Don't make tkSimpleDialog dialogs transient if
+  the parent window is withdrawn.
+
 - Bug #1597824: return the registered function from atexit.register()
   to facilitate usage as a decorator.