Energistics parser issues - FileSource - extra special symbols are inserted

Please see the output of the WITSML parser. FileSource parameter has a lot of extra special symbols:

"Datasets": [ { "acl": { "owners": [ "data.default.owners@odesprod.osdu-gcp.go3-nrg.projects.epam.com" ], "viewers": [ "data.default.viewers@odesprod.osdu-gcp.go3-nrg.projects.epam.com" ] }, "kind": "odesprod:wks:dataset--File.WITSML: 1.0.0", "legal": { "legaltags": [ "odesprod-demo-legaltag" ], "otherRelevantDataCountries": [ "US" ], "status": "compliant" }, "createTime": "2018-01-23T08: 19: 11.884000-06: 00", "createUser": "1411_input", "data": { "DatasetProperties": { "FileSourceInfo": { "FileSize": "5187", "FileSource": "https%3A%2F%2Fstorage%2Egoogleapis%2Ecom%2Fosdu-data-prod-persistent-area%2F1fc6cfef-4cca-4849-a15f-b2e2eb2a5bd8%2F5a71cfaff4b8492aae9b62bc3d99676f" } }, "TotalSize": "5187", "ResourceSecurityClassification": "odesprod:reference-data--ResourceSecurityClassification:RESTRICTED:", "Name": "5a71cfaff4b8492aae9b62bc3d99676f", "SchemaFormatTypeID": "odesprod:reference-data--SchemaFormatType:EnergisticsWITSML:", "WITSML_Version": "2.0" }, "id": "odesprod:dataset--File.WITSML: 20C60DDC-D36D-4A3C-800F-504CE0B5605D", "modifyTime": "2018-01-23T08: 19: 11.884000-06: 00" } ] } } }