User starts to install a package ... Packagekit prompts whether the user accepts the installation of additional dependencies ... user cancels installation ...
Software Log Viewer shows an entry for the installation of the package that never happened.
We moved the upstream bugtracker to GitHub a long time ago. If this issue still affects you please re-create the issue here: https://github.com/hughsie/PackageKit/issues
Sorry for the impersonal message, and fingers crossed your issue no longer happens. Thanks.