Keyboard shortcuts 'Currently assigned to' does not work correctly

[squidesquide]

The 'Control + D' (to duplicate text line) and 'Control + T' (to switch line order) shortcuts are a constant source of problems to me, since they mess up the code when I forgot my focus is not currently with my browser. I want to disable them. The problem is I can't find them in the Keyboard shortcuts tab in the Configure editor window (Settings > Editor...).

When I type Control+F at the 'New shortcut' textbox, Codeblocks correctly tells me it is currently assigned to 'Find'. But Control+D and Control+T both show currently assigned to None. That is not the case. Is this a bug? Am I searching at the wrong place?

More importantly: where can I find and disable the Control+D and Control+T shortcuts?
 
I'm running a standard Windows installation of Code::Blocks  Version Release 13.12 rev 9501. Thanks for any help.

[oBFusCATed]

Probably in the code, but I have to look more seriously to verify this claim.

[Pecan]

Scintilla since rel 1.5 captures and controls many keys which Keybinder cannot see.

Scintila Release 1.50
Released on 24 January 2003.
Duplicate line command added with default assignment to Ctrl+D.

[squidesquide]

Thanks for the answers.

Are there any workarounds?

These shortcuts really do annoy me. I tried to find innocuous commands to assign Control+D and Control+T to, but that's neither elegant nor practical as a solution. Currently, I assingned 'Contro+T'
to 'focus the Thread Search tab', which can be kinda useful. Can't find a useful one for Control+D.

Anyway, for now this seems to be the 'fix': override the shortcuts with something else. Should I report this as a bug somewhere?

Cheers.

[oBFusCATed]

It is strange you don't like the ctrl-d.
I find it very useful tool when writing code.
It is a lot simpler than using copy-paste.

@Pecan: Have you talked to the Scintilla's maintainer about this issue?

[Pecan]

@oBFusCATed

Not a Scintilla problem.

Scintilla does allows the programmer (and menus) to override the default (Ctrl-D) for the "Duplicate" command.
And KeyBinder allows the user to override the menu shortcuts.

But CB does not show some Scintilla shortcuts in the menus. When CB did show them (Ctrl-C and Ctrl-V for example), we were asked to remove them (I forget why).