Fix condition to redraw search result line
Summary: Regression from dd03c26ad1a7a59c12434a0934c7ff1541a259ba
Test Plan: Same than D16820
Reviewers: Konsole, hindenburg
Reviewed By: Konsole, hindenburg
Subscribers: hindenburg, konsole-devel
Tags: Konsole
Differential Revision: https://phabricator.kde.org/D17471