HHH-19497 Addresses major issue fallback implementation of "in list" predicate

hibernate-core/src/main/java/org/hibernate/sql/ast/spi/AbstractSqlAstTranslator.java

@@ -7643,9 +7643,6 @@ public void visitInListPredicate(InListPredicate inListPredicate) {
 								.getExpressions().get( 0 );
 			}
 			else if ( !dialect.supportsRowValueConstructorSyntaxInInList() ) {
-				final ComparisonOperator comparisonOperator = inListPredicate.isNegated() ?
-						ComparisonOperator.NOT_EQUAL :
-						ComparisonOperator.EQUAL;
 				// Some DBs like Oracle support tuples only for the IN subquery predicate
 				if ( dialect.supportsRowValueConstructorSyntaxInInSubQuery() && dialect.supportsUnionAll() ) {
 					inListPredicate.getTestExpression().accept( this );
@@ -7664,14 +7661,17 @@ else if ( !dialect.supportsRowValueConstructorSyntaxInInList() ) {
 					appendSql( CLOSE_PARENTHESIS );
 				}
 				else {
-					String separator = NO_SEPARATOR;
+					if (inListPredicate.isNegated()) {
+						appendSql("not ");
+					}
 					appendSql( OPEN_PARENTHESIS );
-					for ( Expression expression : listExpressions ) {
-						appendSql( separator );
+					String separator = NO_SEPARATOR;
+					for (Expression expression : listExpressions) {
+						appendSql(separator);
 						emulateTupleComparison(
 								lhsTuple.getExpressions(),
-								getSqlTuple( expression ).getExpressions(),
-								comparisonOperator,
+								SqlTupleContainer.getSqlTuple(expression).getExpressions(),
+								ComparisonOperator.EQUAL,
 								true
 						);
 						separator = " or ";