From b60aaf8b239978947d2b0e3f56e7d8a4092d7570 Mon Sep 17 00:00:00 2001
From: Greg Sanders <gsanders87@gmail.com>
Date: Fri, 3 Nov 2023 09:21:48 -0400
Subject: [PATCH] policy: make anchor spend standard

Only standard when non-nested.
---
 src/script/interpreter.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/script/interpreter.cpp b/src/script/interpreter.cpp
index 20a9830d0e..9d0e9b5e3c 100644
--- a/src/script/interpreter.cpp
+++ b/src/script/interpreter.cpp
@@ -1943,6 +1943,8 @@ static bool VerifyWitnessProgram(const CScriptWitness& witness, int witversion,
             }
             return set_success(serror);
         }
+    } else if (!is_p2sh && CScript::IsPayToAnchor(witversion, program)) {
+        return true;
     } else {
         if (flags & SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM) {
             return set_error(serror, SCRIPT_ERR_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM);