fixup! apply feedback

lib/sql.js

@@ -1097,19 +1097,11 @@ SQLConnector.prototype._buildWhere = function(model, where) {
       // The value is not an array, fall back to regular fields
     }
 
-    if (key === 'where') {
-      // business as usual if the model has a property named 'where'
-      if (props[key]) {
-        continue;
-      } else {
-        throw new Error('Filter object detected. Please use a where object instead.');
-      }
-    }
     var p = props[key];
     if (p == null) {
-      // Unknown property, ignore it
-      debug('Unknown property %s is skipped for model %s', key, model);
-      continue;
+      throw new Error(
+        `Unknown property ${key} used in a "where" condition for model ${model}`
+      );
     }
     // eslint-disable one-var
     var expression = where[key];