db: Change foreigen key option of issue table
db: Change foreigen key option of issue table

It can help to prevent organization deletion error.

doortts/fork-yobi,doortts/fork-yobi,yona-projects/yona,doortts/fork-yobi,yona-projects/yona,yona-projects/yona,doortts/fork-yobi,yona-projects/yona