fix scope propagation

Author: mydea

packages/tracing-internal/src/browser/browserTracingIntegration.ts

@@ -279,18 +279,23 @@ export const browserTracingIntegration = ((_options: Partial<BrowserTracingOptio
         const sentryTrace = getMetaContent('sentry-trace');
         const baggage = getMetaContent('baggage');
 
+        // Continue trace updates the _current_ scope, but we want to break out of it again...
+        // This is a bit hacky, because we want to get the span to use both the correct scope _and_ the correct propagation context
+        // but afterwards, we want to reset it to avoid this also applying to other spans
         const scope = getCurrentScope();
+        const propagationContextBefore = scope.getPropagationContext();
 
-        // Continue trace updates the _current_ scope, but we want to break out of it again...
         activeSpan = continueTrace({ sentryTrace, baggage }, () => {
-          // Ensure we are on the original current scope again
+          // Ensure we are on the original current scope again, so the span is set as active on it
           return withScope(scope, () => {
             return _createRouteSpan(client, {
               op: 'pageload',
               ...startSpanOptions,
             });
           });
         });
+
+        scope.setPropagationContext(propagationContextBefore);
       });
 
       if (options.instrumentPageLoad && WINDOW.location) {