title: Foreign keys vanishes after froward engineer on Mysql Workbench
body: <p>There was a existing MySQL database. I have reversed engineer the db into MySQL Workbench then created some tables and placed some relationship among tables. </p>
  
  <p>At the end I forward engineered the database. Then I observed the db from phpmyadmin, in that db the new tables and other changes have taken places but foreign keys does not seems to be added. What the problem here???? What should I do? </p>