Parsing of @context string fails about rdflib-jsonld HOT 1 OPEN

*** ./venv/lib/python3.8/site-packages/rdflib_jsonld/parser.py.orig     2020-12-27 09:23:07.000000000 +0200
--- ./venv/lib/python3.8/site-packages/rdflib_jsonld/parser.py  2020-12-27 11:02:27.972823101 +0200
***************
*** 122,127 ****
--- 122,129 ----
          elif isinstance(data, dict):
              l_ctx = data.get(CONTEXT)
              if l_ctx:
+                 if not isinstance(l_ctx, dict):
+                     l_ctx = { '@vocab': l_ctx }
                  context.load(l_ctx, context.base)
                  topcontext = True
              resources = data