use correct trace state

Author: sentrivana

sentry_sdk/integrations/opentelemetry/sampler.py

@@ -51,8 +51,8 @@ def dropped_result(span_context, attributes, sample_rate=None):
     # these will only be added the first time in a root span sampling decision
     trace_state = span_context.trace_state
 
-    if TRACESTATE_SAMPLED_KEY not in span_context.trace_state:
-        trace_state = span_context.trace_state.add(TRACESTATE_SAMPLED_KEY, "false")
+    if TRACESTATE_SAMPLED_KEY not in trace_state:
+        trace_state = trace_state.add(TRACESTATE_SAMPLED_KEY, "false")
 
     if sample_rate and TRACESTATE_SAMPLE_RATE_KEY not in trace_state:
         trace_state = trace_state.add(TRACESTATE_SAMPLE_RATE_KEY, str(sample_rate))
@@ -70,7 +70,7 @@ def sampled_result(span_context, attributes, sample_rate):
     trace_state = span_context.trace_state
 
     if TRACESTATE_SAMPLED_KEY not in trace_state:
-        trace_state = span_context.trace_state.add(TRACESTATE_SAMPLED_KEY, "true")
+        trace_state = trace_state.add(TRACESTATE_SAMPLED_KEY, "true")
     if TRACESTATE_SAMPLE_RATE_KEY not in trace_state:
         trace_state = trace_state.add(TRACESTATE_SAMPLE_RATE_KEY, str(sample_rate))