IntegrityError : AUTH_USER DJango 1.8

[Jose Paul]

Daer All,

I am trying to run DJango 1.8 test cases .

I am getting several IntegrityError  error  on AUTH_USER table .

SQL generated by test case

INSERT INTO "AUTH_USER" ("PASSWORD", "LAST_LOGIN", "IS_SUPERUSER", "USERNAME", "FIRST_NAME", "LAST_NAME", "EMAIL", "IS_STAFF", "IS_ACTIVE", "DATE_JOINED") VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s)

Values it tries to insert 

(None, None, True, u'superuser', None, None, None, False, True, u'2015-09-17 12:31:09.562000')

Error 

ibm_db_dbi::IntegrityError: Statement Execute Failed: [IBM][CLI Driver][DB2/NT] SQL0407N  Assignment of a NULL value to a NOT NULL column "TBSPACEID=2, TABLEID=24, COLNO=1" is not allowed.  SQLSTATE=23502\r SQLCODE=-407

In the table only LAST_LOGIN is nullable field .

But the sql generated tries to insert none to other fields .DB2 throw error because of this .

I think there is some problem in the sql generated .

I am getting several same  errors on this table .

Can someone comment please .

Thanks

Jose