Discovered we are not passing the ISqlSyntaxProvider correctly to where so it defaults to the global one which causes some issues for libraries such as UmbracoIdentity

src/Umbraco.Core/Persistence/PetaPocoSqlExtensions.cs

@@ -27,6 +27,7 @@ namespace Umbraco.Core.Persistence
             return sql.From(sqlSyntax.GetQuotedTableName(tableName));
         }
 
+        [Obsolete("Use the overload specifying ISqlSyntaxProvider instead")]
         public static Sql Where<T>(this Sql sql, Expression<Func<T, bool>> predicate)
         {
             var expresionist = new PocoToSqlExpressionVisitor<T>();
@@ -34,6 +35,13 @@ namespace Umbraco.Core.Persistence
             return sql.Where(whereExpression, expresionist.GetSqlParameters());
         }
 
+        public static Sql Where<T>(this Sql sql, Expression<Func<T, bool>> predicate, ISqlSyntaxProvider sqlSyntax)
+        {
+            var expresionist = new PocoToSqlExpressionVisitor<T>(sqlSyntax);
+            var whereExpression = expresionist.Visit(predicate);
+            return sql.Where(whereExpression, expresionist.GetSqlParameters());
+        }
+
         private static string GetFieldName<T>(Expression<Func<T, object>> fieldSelector, ISqlSyntaxProvider sqlSyntax)
         {
             var field = ExpressionHelper.FindProperty(fieldSelector) as PropertyInfo;

src/Umbraco.Core/Persistence/Querying/PocoToSqlExpressionVisitor.cs

@@ -14,6 +14,14 @@ namespace Umbraco.Core.Persistence.Querying
     {
         private readonly Database.PocoData _pd;
 
+
+        public PocoToSqlExpressionVisitor(ISqlSyntaxProvider syntaxProvider)
+            : base(syntaxProvider)
+        {
+            
+        }
+
+        [Obsolete("Use the overload the specifies a SqlSyntaxProvider")]
         public PocoToSqlExpressionVisitor()
             : base(SqlSyntaxContext.SqlSyntaxProvider)
         {