[server] Send text input leave if focused surface gets unbound

Authored by graesslin on Jul 19 2017, 6:16 PM.

Description

[server] Send text input leave if focused surface gets unbound

Summary: As 98e5d269a110dca9cae1e4ed2bb3051f02a69bff just for text input.

Test Plan: Adjusted test passes, fails without adjustment

Reviewers: Plasma, Frameworks

Subscribers: plasma-devel

Tags: Plasma on Wayland, Frameworks

Differential Revision: https://phabricator.kde.org/D6786