Comment 0 for bug 1316509

Note: This bug has been reported upstream and also fixed (the patch attached is from the upstream bugreport).

[Impact]
 * Unmounting/ejecting a volume can lead to crashes/segfaults.
 * This bug is quite critical for users of Xubuntu and Ubuntu Studio, as it affects the file-manager Thunar, which is still Gtk2. (The problem occurs when users unmount a volume.)
 * A detailed description/explanation of the patch is included in the upstream bugreport.

[Test Case]
 * Test-case from the upstream bugreport
1. The system has a volume (partition, connected USB stick, whatever else) that
is not mounted at the moment.
2. Launch smplayer (the bug may trigger with other apps as well).
3. Select "Open" => "File...". The dialog appears.
4. Click on the volume label in the dialog for the volume to be mounted.
5. Select a file on the volume.
6. Click "Open".
 * Our users have also reported frequently that unmounting/ejecting of network drives can cause this problem. Thunar only segfaults/hangs on quitting.

[Regression Potential]
 * Practically zero, as the patch only removes a signal connection.
 * This will obviously only affect distros/desktops that rely on Gtk2.

[Other Info]
 * Upstream, this patch has only been merged into Gtk3, but it also applies in Gtk2. As Gtk2 is crucial for some members of the Ubuntu family (namely Xubuntu and Ubuntu Studio), we need this patch for Gtk2 as well.