pamac-manager drops pending requests after network interruption

Created by: Boruch-Baum

1] Select some package(s) to install 2] Ask pamac-manager to begin the installation 3] Simulate a network interruption (eg. disconnect eth0/wlan0) 4] pamac-manager correctly reports a download error 5] pamac-manager returns to its initial screen, but in its initial state, ie. it doesn't 'remember' what was pending in order to allow the user to re-try.