Comment 20 for bug 992579

Bug 4875 reports basically the exact same issue. It is marked as a duplicated of bug 4695. Should this bug be marked as a duplicate too?

However, bug 4695 is more about the handling of multiple entries in the keyboard shortcut config files with the same logical function not being ideal. This bug and I think 4875 are more about the fact that xfce is creating a keyboard shortcut file with duplicate entries in the first place. Hence, I'm not sure if the duplicate marking is entirely correct.

For additional details, please see:
https://bugs.launchpad.net/xfce4-settings/+bug/992579

There I observe that xfce itself is creating this issue (it creates a config file with both ALT-F7 and ALT-F10 pointing at maximize_window_key; no user editing of the config file or use of xfconf is needed to cause this issue). Quoting from that bug:

Strange. I believe the file /etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-keyboard-shortcuts.xml is the default content for .config/xfce4/xfconf/xfce-perchannel-xml/xfce4-keyboard-shortcuts.xml, and should be copied to it when "Reset to defaults" is executed in the XFCE settings application.

However, /etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-keyboard-shortcuts.xml does NOT contain entries for both ALT-F7 and ALT-F10 being set to maximize_window_key (it just has an entry for ALT-F10), yet "Reset to defaults" DOES recreate this issue in the user's .config/xfce4/xfconf/xfce-perchannel-xml/xfce4-keyboard-shortcuts.xml. It seems like something in the application code rather than the default settings file is causing this problem.