[DATALAD] Recorded changes

a.json

@@ -0,0 +1 @@
+{"type": "file", "dataset_id": "4f03a794-dc76-11ea-994b-7cdd908c7490", "dataset_version": "617610cc3db409714bd9506dda88c471b1bedd6d", "path": "file_1", "extractor_name": "metalad_core", "extractor_version": "1", "extraction_parameter": {}, "extraction_time": 1632862686.7046328, "agent_name": "Christian M\u00f6nch", "agent_email": "christian.moench@web.de", "extracted_metadata": {"@id": "datalad:SHA1-s0--617610cc3db409714bd9506dda88c471b1bedd6d", "contentbytesize": 0}}

b.json

@@ -0,0 +1 @@
+{"type": "file", "dataset_id": "4f03a794-dc76-11ea-994b-7cdd908c7490", "dataset_version": "617610cc3db409714bd9506dda88c471b1bedd6d", "path": "file_1", "extractor_name": "metalad_core_file", "extractor_version": "0.0.1", "extraction_parameter": {}, "extraction_time": 1632862678.058596, "agent_name": "Christian M\u00f6nch", "agent_email": "christian.moench@web.de", "extracted_metadata": {"@id": "datalad:SHA1-s0--da39a3ee5e6b4b0d3255bfef95601890afd80709", "type": "file", "path": "file_1", "content_byte_size": 0, "comment": "test-implementation of core_file"}}