Don't notify about value changes if we are still in the constructor
Don't notify about value changes if we are still in the constructor

Summary:
Since we are using the timer, it will make the UI react to it at some point
despite it not really changing.

Reviewers: #frameworks, davidedmundson

Reviewed By: davidedmundson

Subscribers: davidedmundson, broulik, plasma-devel

Tags: #kirigami

Differential Revision: https://phabricator.kde.org/D8820

bearsh/kirigami,bearsh/kirigami