[gnome-terminal] window: Fix Clear Highlight to actually clear the highlight

[Egmont Koblinger <egmontkob src gnome org>]

commit 22dd5dd57a08208abced8d1cfc940b3c8200b6bd
Author: Egmont Koblinger <egmont gmail com>
Date:   Mon Mar 5 13:57:09 2018 +0100

    window: Fix Clear Highlight to actually clear the highlight
    
    https://bugzilla.gnome.org/show_bug.cgi?id=792885

 src/terminal-window.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/terminal-window.c b/src/terminal-window.c
index 30fd6ad..461ceb5 100644
--- a/src/terminal-window.c
+++ b/src/terminal-window.c
@@ -1202,6 +1202,7 @@ action_find_clear_cb (GSimpleAction *action,
     return;
 
   vte_terminal_search_set_regex (VTE_TERMINAL (priv->active_screen), NULL, 0);
+  vte_terminal_unselect_all (VTE_TERMINAL (priv->active_screen));
 }
 
 static void