[Bf-blender-cvs] [9eb647f1c8] master: Fix T50656: Compositing node editor is empty, no nodes can be added

[Sergey Sharybin]

Commit: 9eb647f1c8d8d7ea7da8f7dff7c19a2008afe26c
Author: Sergey Sharybin
Date:   Thu Feb 23 11:23:49 2017 +0100
Branches: master
https://developer.blender.org/rB9eb647f1c8d8d7ea7da8f7dff7c19a2008afe26c

Fix T50656: Compositing node editor is empty, no nodes can be added

===================================================================

M	source/blender/editors/space_node/node_edit.c

===================================================================

diff --git a/source/blender/editors/space_node/node_edit.c b/source/blender/editors/space_node/node_edit.c
index ffe510016f..8a61857675 100644
--- a/source/blender/editors/space_node/node_edit.c
+++ b/source/blender/editors/space_node/node_edit.c
@@ -582,7 +582,7 @@ void snode_set_context(const bContext *C)
 		}
 	}
 	
-	if (snode->nodetree != ntree || snode->id != id || snode->from != from) {
+	if (snode->nodetree != ntree || snode->id != id || snode->from != from || snode->treepath.last == NULL) {
 		ED_node_tree_start(snode, ntree, id, from);
 	}