馃崚 update: disable quitting on eventloop locker
KNS (for instance) uses KJobs and KJobs have eventloop lockers and those lockers cause the application to quit when the last locker disappears (i.e. job finishes). this is before we have finished our work so the updater ended up broken.
(cherry picked from commit c772b136)
Co-authored-by: Harald Sitter sitter@kde.org