[req cookie] fix remove_cookie expires which was leading to expires computed to 0 in set_cookie and the Cookie class interpret that has no expires. Closes #2154654
ifnotrql('CWConstraintType X WHERE X name "RQLUniqueConstraint"',ask_confirm=False):rql('INSERT CWConstraintType X: X name "RQLUniqueConstraint"',ask_confirm=False)