removed duplicated foreign keys

lib/sequelize/SequelizeTable.js

@@ -166,6 +166,7 @@ exports.SequelizeTable = function(Sequelize, sequelize, tableName, attributes, o
       
       // start - overwrite the association of the before defined hasOne or hasMany relation, to fit the belongsTo foreign keys
       var Factory = new require("./Factory").Factory(Sequelize, sequelize)
+
       if(backAssociation.type == 'hasMany') {
         delete _table.prototype[Sequelize.Helper.SQL.addPrefix('get', backAssociation.name)]
         delete _table.prototype[Sequelize.Helper.SQL.addPrefix('set', backAssociation.name)]
@@ -175,6 +176,8 @@ exports.SequelizeTable = function(Sequelize, sequelize, tableName, attributes, o
         delete _table.prototype[Sequelize.Helper.SQL.addPrefix('set', backAssociation.name)]
         Factory.addOneToOneMethods(_table, table, assocName, backAssociation.name)
       }
+      
+      backAssociation.name = assocName
       // end - overwrite the association of the before defined hasOne or hasMany relation, to fit the belongsTo foreign keys
       
       table.associations.push({ name: assocName, table: _table, type: 'belongsTo' })