Fix #142954: Crash when opening file with undefined Translate node

Blender crashes when opening a file with undefined Translate nodes due
to a missing storage. The crash happens during versioning, as the nodes
are not yet undefined at this point. To fix this, we make the versioning
code more corruption proof and skip versioning nodes with no storage.

Pull Request: https://projects.blender.org/blender/blender/pulls/143055

source/blender/blenloader/intern/versioning_450.cc

@@ -3221,6 +3221,10 @@ static void do_version_translate_node_remove_relative(bNodeTree *node_tree)
     }
 
     const NodeTranslateData *data = static_cast<NodeTranslateData *>(node->storage);
+    if (!data) {
+      continue;
+    }
+
     if (!bool(data->relative)) {
       continue;
     }