diff --git a/src/backend/executor/nodeModifyTable.c b/src/backend/executor/nodeModifyTable.c
index c9171a4da8cc6f0a0673d65dce9f0e5300573038..15279f62d2a66ce99140ce31827a13b984758c67 100644
--- a/src/backend/executor/nodeModifyTable.c
+++ b/src/backend/executor/nodeModifyTable.c
@@ -807,6 +807,12 @@ ldelete:;
 		rslot = ExecProcessReturning(resultRelInfo->ri_projectReturning,
 									 slot, planSlot);
 
+		/*
+		 * Before releasing the target tuple again, make sure rslot has a
+		 * local copy of any pass-by-reference values.
+		 */
+		ExecMaterializeSlot(rslot);
+
 		ExecClearTuple(slot);
 		if (BufferIsValid(delbuffer))
 			ReleaseBuffer(delbuffer);