Merge branch 'Issue/2464-invalidateMeta' into 'dev'

Fix: Invalidate Metadata

See merge request !94

src/Blob/Controllers/BlobController.cs

@@ -320,6 +320,14 @@ namespace Coscine.Api.Blob.Controllers
                     return BadRequest($"No provider for: \"{resource.Type.DisplayName}\".");
                 }
                 await resourceTypeDefinition.DeleteEntry(resource.Id.ToString(), path);
+
+                var userGraphName = $"{_rdfStoreConnector.UserUrlPrefix}/{user.Id}";
+                if (resourceTypeDefinition.ResourceTypeConfiguration.SpecificType?.Type != "linked")
+                {
+                    _rdfStoreConnector.SetInvalidation(resource.Id.ToString(), path, "data", new Uri(userGraphName));
+                }
+                _rdfStoreConnector.SetInvalidation(resource.Id.ToString(), path, "metadata", new Uri(userGraphName));
+
                 LogAnalytics("Delete File", resourceId, path, user);
                 return NoContent();
             }