diff --git a/src/backend/executor/execExpr.c b/src/backend/executor/execExpr.c
index a5395536a1..4143ff1730 100644
--- a/src/backend/executor/execExpr.c
+++ b/src/backend/executor/execExpr.c
@@ -2317,8 +2317,21 @@ ExecInitExprRec(Expr *node, ExprState *state,
 			{
 				JsonValueExpr *jve = (JsonValueExpr *) node;
 
-				Assert(jve->formatted_expr != NULL);
-				ExecInitExprRec(jve->formatted_expr, state, resv, resnull);
+				ExecInitExprRec(jve->raw_expr, state, resv, resnull);
+
+				if (jve->formatted_expr)
+				{
+					Datum	   *innermost_caseval = state->innermost_caseval;
+					bool	   *innermost_isnull = state->innermost_casenull;
+
+					state->innermost_caseval = resv;
+					state->innermost_casenull = resnull;
+
+					ExecInitExprRec(jve->formatted_expr, state, resv, resnull);
+
+					state->innermost_caseval = innermost_caseval;
+					state->innermost_casenull = innermost_isnull;
+				}
 				break;
 			}