Crash if hit options twice in a graphic

[Francisco Muñoz]

If you hit the options in a graphic twice the program crashes.

From the debugger:

Unhandled exception in tolbase.exe (TCL84.DLL): 0xC00000005: Access Violation

(This issue is already reported in the mailing list... I just got motivated to fill the
report after the last crash)

[Víctor de Buen Remiro]

Now TOL doesn't crash, just an error message is shown.

window name "t" already exists in parent
window name "t" already exists in parent

while executing

"toplevel $path -relief $re -borderwidth $bd -class $dialogClass"

(procedure "Dialog::create" line 22)
invoked from within

"Dialog $path.t -title [mc "Graph Options"] -modal local -parent $path"

(procedure "::bayesGraph::GrapOpt" line 18)
invoked from within

"::bayesGraph::GrapOpt ::bayesGraph::.main.mdi.slave9.work.g"

("uplevel" body line 1)
invoked from within

"uplevel \#0 $cmd"

(procedure "Button::_release" line 19)
invoked from within

"Button::_release .main.mdi.slave9.work.g.tb.tbg.options"

(command bound to event)