diff --git a/tests/fixtures/structured-pr-sync-smoke-62.txt b/tests/fixtures/structured-pr-sync-smoke-62.txt
new file mode 100644
index 0000000..10e695e
--- /dev/null
+++ b/tests/fixtures/structured-pr-sync-smoke-62.txt
@@ -0,0 +1,2 @@
+Disposable marker for issue #62 structured PR Sync smoke.
+This file exists only to create a harmless implementation diff for the end-to-end governance test.