Bug 405020

SUMMARY
When installing software from a .deb package for example, and Discover is completely fresh and closed when it opens the Install button is enabled and available to click. When you click it however it does nothing. At first glance it's difficult to understand what's going on, after some investigation I have figured out that if Discover is Checking for Updates clicking Install does nothing as it gets queued up but there is no indication.

Additionally, since it needs administrative access it doesn't ask for your password until Check Updates is finished either.  If you click Install multiple times, it will break it and you may never see the password prompt ever again until you terminate the process.

STEPS TO REPRODUCE
1. Install .deb package while Discover is cold and closed and in a state that will force it to run a check for updates on startup.
2. Discover will be busy checking for updates, while it is, click "Install"
3. No action occurs, password prompt is delayed until Check Updates is done.

OBSERVED RESULT
No action occurs.

EXPECTED RESULT
Immediately ask for password so the app install can done in the background as normal after check updates is done.  Disable Install button while its queued up for install.

SOFTWARE/OS VERSIONS
Windows: 
MacOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION