Clone shortcut hooked by Export dialog when docked

Windows 7 - 64-bits
Rev 11547

Alt+D is not cloning selection when Export dialog is docked, instead the "Drawing" button is selected in the dialog.
This issue is due to the ALT modifier key that allows to select a command in a dialog or a toolbar from it's underscored action letter that is trapped by the dialog window.

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In fact, all ALT+? shortcuts are not working if the letter is already Assigned.

I tried by changing the Inkscape interface language to "Dutch" (Nederlands):
File, Edit, View, [...] are replaced with Bestand, Bewerken, Beeld, [...]

So when the "Dutch" language is active, the shortcut ALT+D popup the (Beeld) menu (and this has nothing to do with the export dialog docking system)