[gtk+/wip/baedert/drawing] paned: Remove assertion in get_child_property

[Timm Bäder <baedert src gnome org>]

commit 7d8d81098547781a1ee11b6b4be104fca9d3db7c
Author: Timm Bäder <mail baedert org>
Date:   Mon Jun 26 12:02:17 2017 +0200

    paned: Remove assertion in get_child_property
    
    Passing the third child (the pane separator) is possible and shouldn't
    cause the process to abort.

 gtk/gtkpaned.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkpaned.c b/gtk/gtkpaned.c
index d1551f1..c75d90e 100644
--- a/gtk/gtkpaned.c
+++ b/gtk/gtkpaned.c
@@ -965,8 +965,10 @@ gtk_paned_get_child_property (GtkContainer *container,
   GtkPaned *paned = GTK_PANED (container);
   GtkPanedPrivate *priv = paned->priv;
 
-  g_assert (child == priv->child1 || child == priv->child2);
-  
+  if (child != priv->child1 &&
+      child != priv->child2)
+    return;
+
   switch (property_id)
     {
     case CHILD_PROP_RESIZE: