JSON-LD parser doesn't restore root directory

[hsolbrig]

It appears that the working directory isn't refreshed when reading when reading relative context files.

In the directory structure:

test.jsonld
contexts/person.jsonld
contexts/place.jsonld

Where test.jsonld contains:

{
  "@context": [
    "contexts/person.jsonld",
    "contexts/place.jsonld"
  ]
}

rdfpipe -i json-ld -o turtle ldbug.jsonld returns the following:

Traceback (most recent call last):
  File "/Users/solbrig/Development/json_ld_tests/venv/bin/rdfpipe", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/Users/solbrig/Development/json_ld_tests/venv/lib/python3.11/site-packages/rdflib/tools/rdfpipe.py", line 198, in main
    parse_and_serialize(
  File "/Users/solbrig/Development/json_ld_tests/venv/lib/python3.11/site-packages/rdflib/tools/rdfpipe.py", line 52, in parse_and_serialize
    graph.parse(fpath, format=use_format, **kws)
  File "/Users/solbrig/Development/json_ld_tests/venv/lib/python3.11/site-packages/rdflib/graph.py", line 1977, in parse
    context.parse(source, publicID=publicID, format=format, **args)
  File "/Users/solbrig/Development/json_ld_tests/venv/lib/python3.11/site-packages/rdflib/graph.py", line 1330, in parse
    parser.parse(source, self, **args)
  File "/Users/solbrig/Development/json_ld_tests/venv/lib/python3.11/site-packages/rdflib/plugins/parsers/jsonld.py", line 115, in parse
    to_rdf(data, conj_sink, base, context_data, version, generalized_rdf)
  File "/Users/solbrig/Development/json_ld_tests/venv/lib/python3.11/site-packages/rdflib/plugins/parsers/jsonld.py", line 134, in to_rdf
    return parser.parse(data, context, dataset)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/solbrig/Development/json_ld_tests/venv/lib/python3.11/site-packages/rdflib/plugins/parsers/jsonld.py", line 154, in parse
    context.load(local_context, context.base)
  File "/Users/solbrig/Development/json_ld_tests/venv/lib/python3.11/site-packages/rdflib/plugins/shared/jsonld/context.py", line 375, in load
    self._prep_sources(base, source, sources, referenced_contexts)
  File "/Users/solbrig/Development/json_ld_tests/venv/lib/python3.11/site-packages/rdflib/plugins/shared/jsonld/context.py", line 404, in _prep_sources
    new_ctx = self._fetch_context(
              ^^^^^^^^^^^^^^^^^^^^
  File "/Users/solbrig/Development/json_ld_tests/venv/lib/python3.11/site-packages/rdflib/plugins/shared/jsonld/context.py", line 440, in _fetch_context
    source = source_to_json(source_url)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/solbrig/Development/json_ld_tests/venv/lib/python3.11/site-packages/rdflib/plugins/shared/jsonld/util.py", line 35, in source_to_json
    source = create_input_source(source, format="json-ld")
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/solbrig/Development/json_ld_tests/venv/lib/python3.11/site-packages/rdflib/parser.py", line 404, in create_input_source
    ) = _create_input_source_from_location(
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/solbrig/Development/json_ld_tests/venv/lib/python3.11/site-packages/rdflib/parser.py", line 456, in _create_input_source_from_location
    file = open(filename, "rb")
           ^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: '/Users/solbrig/Development/json_ld_tests/contexts/contexts/place.jsonld'

[aucampia]

Closing this as the PR that fixed it was merged.