fix: during replace use id column name if present

Author: emonddr

lib/ibmdb.js

@@ -584,7 +584,9 @@ IBMDB.prototype._replace = function(model, where, data, options, callback) {
 
           if (err) return cb(err);
 
-          data[idName] = selectData[0][idName];
+          // need to use column name (if available)
+          // when obtaining value from 'selectData'
+          data[idName] = selectData[0][self.idColumn(model)];
           stmt = self.buildInsert(model, data);
 
           connection.query(stmt, function(err, sData) {