Description of problem:
Test case failure: https://tcms.engineering.redhat.com/case/245166/?from_plan=18656

Version-Release number of selected component (if applicable):
kernel-3.10.0-305.el7.ppc64
gnome-packagekit-3.14.3-5.el7.ppc64

How reproducible:
100%

Steps to Reproduce:
1. Have some functioning yum repositories installed.  Normal beaker installs will install appropriate files in /etc/yum.repos.d/ .  If no functioning repositories are available, the test plan document has instructions for building RPMs and creating repositories.
2. If eog is installed, uninstall it.  In a terminal window, as root, run "rpm -e eog".
3. Confirm that eog is no longer installed by running, in a terminal window, "rpm -q eog".  It should say, "package eog is not installed".
4. In a terminal window, as a non-root user, run "gpk-application".

5. Using the search field in the upper left, in "Search by name" mode (the hourglass icon; change via drop-down if needed), search for "eog".
6. Click the (presumably unchecked) checkbox next to "Eye of Gnome image viewer" (eog) which should appear on the right.
7. Click the "Apply Changes" button which should appear in the upper right.

Actual results:
Nothing happen. No query on authentication appears.

Expected results:
Provide the (sudo) user's or the "Administrator" (root) password when prompted and finish installation.

Additional info:
Problem appeared on architectures: ppc64, ppc64le

Same problem with applying changes when removing component.