[imp] add attachment - select file window show up two times

[Jens Grüntjes]

Zitat von Samuel Wolf <samuel at sheepflock.de>:

> Hi,
>
> if I choose a file after click on "Add Attachment" the file load up,  
> but the window to select the file show up again. Choose the same  
> file again and click ok load the file up a second time and the file  
> select window close.
>
> Click on abort after the first file select close the window and show  
> the uploaded attachment as expected.
> Upload via Drag & Drop work fine.
>
> This happens in Iceweasel 22 on Debian 7.1, but not in Chromium  
> Version 27.0.1453.110 on my Debian desktop.
> Can anyone confirm this?
Yes, I experience the same with Firefox 22 on Kubuntu 13.04 and with  
Firefox 22 on Xubuntu. Chromium 28.0.1500.5 works fine on Kubuntu.  
IE10 also works fine on Windows 7 Home.
> Look like a browser problem, or?
>
> Horde 5.1.1 / IMP 6.1.2
The same for me.
>
> Samuel
Greetings
Jens