UnitPopup - missing leave group for instances?

[FaulTier]

Aloha!

Due to the rename of the simple "leave group" in instances to something else (should be "leave instance group"?) it won't show up in the unit-dropdownmenu.

So, my dropdownlist ist currently

UnitPopupMenus["SELF"] = { "SET_FOCUS", "PVP_FLAG", "LOOT_METHOD", "LOOT_THRESHOLD", "OPT_OUT_LOOT_TITLE", "LOOT_PROMOTE", "CONVERT_TO_RAID", "CONVERT_TO_PARTY", "DUNGEON_DIFFICULTY", "RAID_DIFFICULTY", "RESET_INSTANCES", "RAID_TARGET_ICON", "SELECT_ROLE", "LEAVE", "CANCEL" };

What's missing to show the missing/new entry?