fix: Dont require transaction to be on the scope to be delivered correctly

Author: kamilogorek

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-Coming soon...
+- [apm] fix: Always attach `contexts.trace` to finished transaction (#2353)
 
 ## 5.10.2
 

packages/apm/src/span.ts

@@ -287,6 +287,9 @@ export class Span implements SpanInterface, SpanContext {
     }
 
     return this._hub.captureEvent({
+      contexts: {
+        trace: this.getTraceContext(),
+      },
       spans: finishedSpans,
       start_timestamp: this.startTimestamp,
       tags: this.tags,

packages/hub/src/scope.ts

@@ -327,10 +327,6 @@ export class Scope implements ScopeInterface {
     if (this._transaction) {
       event.transaction = this._transaction;
     }
-    if (this._span) {
-      event.contexts = event.contexts || {};
-      event.contexts.trace = this._span.getTraceContext();
-    }
 
     this._applyFingerprint(event);