This bug exists in Linux Mint 18.3 (Sylvia, xenial-based): synaptic shows duplicate entries for packages.linuxmint.com Origins.
$ apt-cache policy synaptic synaptic: Installed: 0.83linuxmint4 Candidate: 0.83linuxmint4 Version table: *** 0.83linuxmint4 700 700 http://packages.linuxmint.com sylvia/upstream amd64 Packages 100 /var/lib/dpkg/status 0.83 500 500 http://archive.ubuntu.com/ubuntu xenial/universe amd64 Packages Very annoying bug! -- You received this bug notification because you are a member of Lubuntu Packages Team, which is subscribed to synaptic in Ubuntu. https://bugs.launchpad.net/bugs/1533554 Title: Duplicate package entries shown when listing by package origin Status in Linux Mint: New Status in synaptic: Confirmed Status in apt-xapian-index package in Ubuntu: Confirmed Status in synaptic package in Ubuntu: Confirmed Bug description: Synaptic 0.83 (also was in 0.82.5 I believe) - Ubuntu Xenial What should happen: Synaptic should as previously show a single item for each package when viewing package list from a particular 'origin'. What does happen: For many packages up to 4 identical entries are shown for each package. See attached screencap. Duplicate list items are quite literally identical and are true duplicates as they relate to the identical package in all respects, including full version. In fact, so much so, that selecting one of a duplicate for an operation such as install/upgrade/remove etc selects and then operates on all the duplicate entries as well. Same problem has been noted on a real machine and in VM running variants of Xenial - Xubuntu/Kubuntu etc, with or with any ppas present on system. To manage notifications about this bug go to: https://bugs.launchpad.net/linuxmint/+bug/1533554/+subscriptions -- Mailing list: https://launchpad.net/~lubuntu-admins Post to : lubuntu-admins@lists.launchpad.net Unsubscribe : https://launchpad.net/~lubuntu-admins More help : https://help.launchpad.net/ListHelp