Issue #20440: Applied yet one patch for using Py_SETREF.
The patch is automatically generated, it replaces the code that uses Py_CLEAR.
diff --git a/Modules/cjkcodecs/multibytecodec.c b/Modules/cjkcodecs/multibytecodec.c
index e4547f7..70a606f 100644
--- a/Modules/cjkcodecs/multibytecodec.c
+++ b/Modules/cjkcodecs/multibytecodec.c
@@ -793,8 +793,7 @@
                               ctx->errors, final ? MBENC_FLUSH | MBENC_RESET : 0);
     if (r == NULL) {
         /* recover the original pending buffer */
-        Py_CLEAR(ctx->pending);
-        ctx->pending = origpending;
+        Py_SETREF(ctx->pending, origpending);
         origpending = NULL;
         goto errorexit;
     }