D8585: Preserve the order in dbus menu when doing action reusing.

[Xuetian Weng]

xuetianweng added a reviewer: broulik.

REPOSITORY
  R120 Plasma Workspace

REVISION DETAIL
  https://phabricator.kde.org/D8585

To: xuetianweng, #plasma, davidedmundson, broulik
Cc: plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, 
abetts, sebas, apol, mart