How can I force the usage of a repository?
Solution 1:
Ign repo_link means that the diff did not return any package updates so it was ignored.
You can force it by doing: apt-get clean && apt-get update
You can also optionally pin the repo: vim /etc/apt/preferences.d/kubuntu-ppa-pin-900
Package: *
Pin: release o=LP-PPA-kubuntu-ppa,n=experimental
Pin-Priority: 900
900 puts it at the highest, anything less than 500 will make it less important than main repos.