[evolution] EEditorDOMFunctions: Critical warning and possible crash when we cannot append the end node for spel

[Tomas Popela <tpopela src gnome org>]

commit 2061d97088b1f60ca1470527e6f2e33a964d351a
Author: Tomas Popela <tpopela redhat com>
Date:   Wed Nov 30 15:48:36 2016 +0100

    EEditorDOMFunctions: Critical warning and possible crash when we cannot append the end node for spell 
checking
    
    If we fail to obtain a parent node of the last element in the viewport
    we still tried to append to it, but that only caused a critical warning,
    but as a consequence a WebKitDOMRange object was not created and we
    tried to unref it that lead to a crash. Be sure that we always append
    the spell check end node.

 .../web-extension/e-editor-dom-functions.c         |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/modules/webkit-editor/web-extension/e-editor-dom-functions.c 
b/src/modules/webkit-editor/web-extension/e-editor-dom-functions.c
index e90791f..1d1e4c1 100644
--- a/src/modules/webkit-editor/web-extension/e-editor-dom-functions.c
+++ b/src/modules/webkit-editor/web-extension/e-editor-dom-functions.c
@@ -886,7 +886,7 @@ e_editor_dom_force_spell_check_in_viewport (EEditorPage *editor_page)
 
                parent = get_parent_block_element (WEBKIT_DOM_NODE (last_element));
                webkit_dom_node_append_child (
-                       WEBKIT_DOM_NODE (parent), WEBKIT_DOM_NODE (text), NULL);
+                       WEBKIT_DOM_NODE (parent ? parent : last_element), WEBKIT_DOM_NODE (text), NULL);
        } else
                webkit_dom_node_append_child (
                        WEBKIT_DOM_NODE (body), WEBKIT_DOM_NODE (text), NULL);