Warning dialog boxes should not block packages' installing process
Created by: KSXGitHub
Occasionally, dialog boxes may show up near the end of installing a group of packages (group is either official packages or AUR packages) just to show warning (e.g. local packages' versions are newer than that of official repos) but block the completion of current installing process as well as next installing process.
Since user cannot cancel packages' installing process via warning box, blocking process would make little sense.