From f772fbecb6c989c8c173168643f26ddc0f1280f6 Mon Sep 17 00:00:00 2001
From: Vincenzo Eduardo Padulano <vincenzo.eduardo.padulano@cern.ch>
Date: Wed, 10 Jun 2026 12:30:21 +0200
Subject: [PATCH] [df] Request dictionary for mergeable RCutFlowReport

This allows proper serialization in case of calling Report operation in distributed mode.

(cherry picked from commit 066fd6e8313b684dc11b8437ac1925161221dfc6)
---
 tree/dataframe/inc/LinkDef.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tree/dataframe/inc/LinkDef.h b/tree/dataframe/inc/LinkDef.h
index 7c13310367149..e5a4bb0675d04 100644
--- a/tree/dataframe/inc/LinkDef.h
+++ b/tree/dataframe/inc/LinkDef.h
@@ -63,6 +63,7 @@
 #pragma link C++ class TNotifyLink<ROOT::Internal::RDF::RNewSampleFlag>;
 #pragma link C++ class ROOT::RDF::RCutFlowReport;
 #pragma link C++ class ROOT::RDF::TCutInfo;
+#pragma link C++ class ROOT::Detail::RDF::RMergeableValue<ROOT::RDF::RCutFlowReport>+;
 
 #endif