From ad55a5e7e4f35802f6106d541b1bcd1f014f109d Mon Sep 17 00:00:00 2001
From: Edwin Smith <edwin@anthropic.com>
Date: Tue, 2 Jul 2024 09:14:10 -0400
Subject: [PATCH] candidate fix for issue 150

---
 src/span_ext.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/span_ext.rs b/src/span_ext.rs
index b7d0454..9e55714 100644
--- a/src/span_ext.rs
+++ b/src/span_ext.rs
@@ -142,6 +142,9 @@ impl OpenTelemetrySpanExt for tracing::Span {
             if let Some(get_context) = subscriber.downcast_ref::<WithContext>() {
                 get_context.with_context(subscriber, id, move |data, _tracer| {
                     if let Some(cx) = cx.take() {
+                        // Clear latched sampling_result so it will recompute from
+                        // the new parent_cx after changing parents.
+                        data.builder.sampling_result = None;
                         data.parent_cx = cx;
                     }
                 });