tag events which have skipped normalization

Author: lobsterkatie

packages/core/src/baseclient.ts

@@ -428,6 +428,7 @@ export abstract class BaseClient<B extends Backend, O extends Options> implement
       normalized.contexts.trace = event.contexts.trace;
     }
 
+    event.sdkProcessingMetadata = { ...event.sdkProcessingMetadata, baseClientNormalized: true };
 
     return normalized;
   }

packages/core/src/request.ts

@@ -72,6 +72,12 @@ export function eventToSentryRequest(event: Event, api: APIDetails): SentryReque
   event.tags = event.tags || {};
   event.extra = event.extra || {};
 
+  // In theory, all events should be marked as having gone through normalization and so
+  // we should never set this tag
+  if (!(event.sdkProcessingMetadata && event.sdkProcessingMetadata.baseClientNormalized)) {
+    event.tags.skippedNormalization = true;
+  }
+
   // prevent this data from being sent to sentry
   // TODO: This is NOT part of the hack - DO NOT DELETE
   delete event.sdkProcessingMetadata;