[evolution] Redoing the input event should remove the BR if it was the only node there

[Tomas Popela <tpopela src gnome org>]

commit 7134e8c16733cfd9eb0c211d7cbb2f19d2ca5cf2
Author: Tomas Popela <tpopela redhat com>
Date:   Tue Aug 23 10:00:03 2016 +0200

    Redoing the input event should remove the BR if it was the only node there
    
    WebKit is doing the same when we are writing.

 .../web-extension/e-editor-undo-redo-manager.c     |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/modules/webkit-editor/web-extension/e-editor-undo-redo-manager.c 
b/modules/webkit-editor/web-extension/e-editor-undo-redo-manager.c
index 46e50bf..66b8d80 100644
--- a/modules/webkit-editor/web-extension/e-editor-undo-redo-manager.c
+++ b/modules/webkit-editor/web-extension/e-editor-undo-redo-manager.c
@@ -853,6 +853,16 @@ undo_delete (EEditorPage *editor_page,
                        }
                }
 
+               if (event->type == HISTORY_INPUT) {
+                       WebKitDOMNode *sibling;
+
+                       sibling = webkit_dom_node_get_next_sibling (WEBKIT_DOM_NODE (element));
+                       if (sibling && WEBKIT_DOM_IS_HTML_BR_ELEMENT (sibling) &&
+                           !webkit_dom_node_get_next_sibling (sibling)) {
+                               remove_node (sibling);
+                       }
+               }
+
                remove_node (WEBKIT_DOM_NODE (element));
 
                if (event->type == HISTORY_DELETE && !e_editor_page_get_html_mode (editor_page)) {