[Bf-blender-cvs] [780310578a0] id_copy_refactor: Fix unreported: Copy-pasting nodes crashes when they have an undefined type

[Lukas Stockner]

Commit: 780310578a0c39fa9badde0010f1e1ee8a8a9194
Author: Lukas Stockner
Date:   Sun Jun 18 05:13:32 2017 +0200
Branches: id_copy_refactor
https://developer.blender.org/rB780310578a0c39fa9badde0010f1e1ee8a8a9194

Fix unreported: Copy-pasting nodes crashes when they have an undefined type

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

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 9dc39b1839b..5f8f839025f 100644
--- a/source/blender/editors/space_node/node_edit.c
+++ b/source/blender/editors/space_node/node_edit.c
@@ -2086,7 +2086,7 @@ static int node_clipboard_paste_exec(bContext *C, wmOperator *op)
 	/* make sure all clipboard nodes would be valid in the target tree */
 	all_nodes_valid = true;
 	for (node = clipboard_nodes_lb->first; node; node = node->next) {
-		if (!node->typeinfo->poll_instance(node, ntree)) {
+		if (!node->typeinfo->poll_instance || !node->typeinfo->poll_instance(node, ntree)) {
 			all_nodes_valid = false;
 			BKE_reportf(op->reports, RPT_ERROR, "Cannot add node %s into node tree %s", node->name, ntree->id.name + 2);
 		}