From c92a7cf4102ecf7b6dc580ad20ee9a5af56bd2ea Mon Sep 17 00:00:00 2001
From: Francois Kritzinger <francois@codesynthesis.com>
Date: Thu, 14 Nov 2024 09:56:17 +0200
Subject: Respond with error to re-request of conclusion check run

---
 mod/mod-ci-github.cxx | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/mod/mod-ci-github.cxx b/mod/mod-ci-github.cxx
index bace849..53c6614 100644
--- a/mod/mod-ci-github.cxx
+++ b/mod/mod-ci-github.cxx
@@ -648,10 +648,12 @@ namespace brep
     //
     if (cr.check_run.name == conclusion_check_run_name)
     {
-      // @@ Let's fail it with appropriate diagnostics.
-
       l3 ([&]{trace << "ignoring conclusion check_run";});
-      return true;
+
+      // 422 Unprocessable Content: The request was well-formed (i.e.,
+      // syntactically correct) but could not be processed.
+      //
+      throw invalid_request (422, "Conclusion check run cannot be rebuilt");
     }
 
     // Get a new installation access token.
-- 
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