Upgrade to RHSOP13 fails because "Table 'keystone.project_tag' doesn't exist"

Issue

• /var/log/keystone/keystone.log

tail /var/log/keystone/keystone.log                                                                              
2019-03-08 13:35:30.240 31778 ERROR keystone.common.wsgi   File "/usr/lib/python2.7/site-packages/pymysql/connections.py", line 1340, in read
2019-03-08 13:35:30.240 31778 ERROR keystone.common.wsgi     first_packet = self.connection._read_packet()
2019-03-08 13:35:30.240 31778 ERROR keystone.common.wsgi   File "/usr/lib/python2.7/site-packages/pymysql/connections.py", line 1014, in _read_packet
2019-03-08 13:35:30.240 31778 ERROR keystone.common.wsgi     packet.check_error()
2019-03-08 13:35:30.240 31778 ERROR keystone.common.wsgi   File "/usr/lib/python2.7/site-packages/pymysql/connections.py", line 393, in check_error
2019-03-08 13:35:30.240 31778 ERROR keystone.common.wsgi     err.raise_mysql_exception(self._data)
2019-03-08 13:35:30.240 31778 ERROR keystone.common.wsgi   File "/usr/lib/python2.7/site-packages/pymysql/err.py", line 107, in raise_mysql_exception
2019-03-08 13:35:30.240 31778 ERROR keystone.common.wsgi     raise errorclass(errno, errval)
2019-03-08 13:35:30.240 31778 ERROR keystone.common.wsgi ProgrammingError: (pymysql.err.ProgrammingError) (1146, u"Table 'keystone.project_tag' doesn't exist") [SQL: u'SELECT project_tag.project_id AS project_tag_project_id, project_tag.name AS project_tag_name, anon_1.project_id AS anon_1_project_id \nFROM (SELECT project.id AS project_id \nFROM project \nWHERE project.name = %(name_1)s AND project.domain_id = %(domain_id_1)s) AS anon_1 INNER JOIN project_tag ON project_tag.project_id = anon_1.project_id ORDE

• osp13 upgrade fails
• Table project_tag doesn't exist