[1667] Confirm modification required twice? [#11413]

[Friedrich]

The confirmation dialog occurs twice when editing properties of a larger number of tracks.
How to reproduce:
-Select a larger amount of files (50+?)
-Change properties (here: genre) by
a. Drag & Drop in the (genre) node in the media tree to a different property (genre)
b. Editing in the properties window (here it seemingly does not always occur)

[dtsig]

The confirmation dialog occurs twice when editing properties of a larger number of tracks.
How to reproduce:
-Select a larger amount of files (50+?)
-Change properties (here: genre) by
a. Drag & Drop in the (genre) node in the media tree to a different property (genre)
b. Editing in the properties window (here it seemingly does not always occur)

Although I have had no problems with the property window (that is what i use and with large number of files just yesterday) I just tried the drag and drop method with 600 files and it did prompt twice. So should be easy bug for MM to confirm.

[Lowlander]

I'm able to reproduce under certain circumstances as well: http://www.ventismedia.com/mantis/view.php?id=11413