Merge branch 'develop' into 'master'

fix

See merge request lyh3024/knowledge_graph!17

block/views.py

@@ -80,6 +80,7 @@ def get_block_list(request):
                 for next_node in next_nodes:
                     if next_node.id not in node_ids:
                         transactions.append(next_node)
+                        node_ids.append(next_node.id)
                     for r in a.transfer_out.all_relationships(next_node):
                         if r.id not in rel_ids:
                             resp_relations.append(gen_rel_json(r))