From 8dfb33fb5f314741bd0efea4626b93edcf9df7d7 Mon Sep 17 00:00:00 2001
From: Christian Hergert <chergert@redhat.com>
Date: Fri, 29 Mar 2019 16:26:20 -0700
Subject: [PATCH] flowbox: check for flowbox when updating selection

---
 gtk/gtkflowbox.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gtk/gtkflowbox.c b/gtk/gtkflowbox.c
index 0a02376bb9..e5414d4c2e 100644
--- a/gtk/gtkflowbox.c
+++ b/gtk/gtkflowbox.c
@@ -297,6 +297,9 @@ gtk_flow_box_child_set_focus (GtkFlowBoxChild *child)
   gboolean modify;
   gboolean extend;
 
+  if (box == NULL)
+    return;
+
   get_current_selection_modifiers (GTK_WIDGET (box), &modify, &extend);
 
   if (modify)