[vte/vte-0-52] widget: Prevent clipboard callbacks during destruction

[Christian Persch <chpe src gnome org>]

commit 864715c5f05f1ba2eb86ab6864875d5f234b97ca
Author: Christian Persch <chpe src gnome org>
Date:   Sun Mar 3 22:15:26 2019 +0100

    widget: Prevent clipboard callbacks during destruction
    
    https://gitlab.gnome.org/GNOME/vte/issues/89
    (cherry picked from commit 3ab488b30283bca9f797965a9ff1ace8f56b0d32)

 src/vte.cc | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/src/vte.cc b/src/vte.cc
index 5da83140..8c881803 100644
--- a/src/vte.cc
+++ b/src/vte.cc
@@ -8492,6 +8492,9 @@ VteTerminalPrivate::widget_screen_changed (GdkScreen *previous_screen)
 
 VteTerminalPrivate::~VteTerminalPrivate()
 {
+        /* Make sure not to change selection while in destruction. See issue vte#89. */
+        m_changing_selection = true;
+
        struct vte_match_regex *regex;
        int sel;
        guint i;