151 2019-06-16 20:21:32,024 [ERROR][/usr/lib/python3.6/site-packages/flask/app.py:1560|app:log_exception] Exception on /user/delete [GET]
 152 Traceback (most recent call last):
 153   File "/usr/lib/python3.6/site-packages/flask/app.py", line 1982, in wsgi_app
 154     response = self.full_dispatch_request()
 155   File "/usr/lib/python3.6/site-packages/flask/app.py", line 1614, in full_dispatch_request
 156     rv = self.handle_user_exception(e)
 157   File "/usr/share/copr/coprs_frontend/coprs/rest_api/__init__.py", line 44, in error_router
 158     return original_handler(e)
 159   File "/usr/lib/python3.6/site-packages/flask/app.py", line 1517, in handle_user_exception
 160     reraise(exc_type, exc_value, tb)
 161   File "/usr/lib/python3.6/site-packages/flask/_compat.py", line 33, in reraise
 162     raise value
 163   File "/usr/lib/python3.6/site-packages/flask/app.py", line 1612, in full_dispatch_request
 164     rv = self.dispatch_request()
 165   File "/usr/lib/python3.6/site-packages/flask/app.py", line 1598, in dispatch_request
 166     return self.view_functions[rule.endpoint](**req.view_args)
 167   File "/usr/share/copr/coprs_frontend/coprs/views/misc.py", line 303, in decorated_function
 168     return f(*args, **kwargs)
 169   File "/usr/share/copr/coprs_frontend/coprs/views/user_ns/user_general.py", line 37, in delete_data
 170     UsersLogic.delete_user_data(flask.g.user.username)
 171   File "/usr/share/copr/coprs_frontend/coprs/logic/users_logic.py", line 123, in delete_user_data
 172     db.engine.connect().execute(query)
 173   File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line 980, in execute
 174     return meth(self, multiparams, params)
 175   File "/usr/lib64/python3.6/site-packages/sqlalchemy/sql/elements.py", line 273, in _execute_on_connection
 176     return connection._execute_clauseelement(self, multiparams, params)
 177   File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line 1090, in _execute_clauseelement
 178     else None,
 179   File "<string>", line 1, in <lambda>
 180   File "/usr/lib64/python3.6/site-packages/sqlalchemy/sql/elements.py", line 448, in compile
 181     return self._compiler(dialect, bind=bind, **kw)
 182   File "/usr/lib64/python3.6/site-packages/sqlalchemy/sql/elements.py", line 454, in _compiler
 183     return dialect.statement_compiler(dialect, self, **kw)
 184   File "/usr/lib64/python3.6/site-packages/sqlalchemy/sql/compiler.py", line 553, in __init__
 185     Compiled.__init__(self, dialect, statement, **kwargs)
 186   File "/usr/lib64/python3.6/site-packages/sqlalchemy/sql/compiler.py", line 310, in __init__
 187     self.string = self.process(self.statement, **compile_kwargs)
 188   File "/usr/lib64/python3.6/site-packages/sqlalchemy/sql/compiler.py", line 341, in process
 189     return obj._compiler_dispatch(self, **kwargs)
 190   File "/usr/lib64/python3.6/site-packages/sqlalchemy/sql/visitors.py", line 90, in _compiler_dispatch
 191     return meth(self, **kw)
 192   File "/usr/lib64/python3.6/site-packages/sqlalchemy/sql/compiler.py", line 2500, in visit_update
 193     self, update_stmt, crud.ISUPDATE, **kw
 194   File "/usr/lib64/python3.6/site-packages/sqlalchemy/sql/crud.py", line 61, in _setup_crud_params
 195     return _get_crud_params(compiler, stmt, **kw)
 196   File "/usr/lib64/python3.6/site-packages/sqlalchemy/sql/crud.py", line 164, in _get_crud_params
 197     kw,
 198   File "/usr/lib64/python3.6/site-packages/sqlalchemy/sql/crud.py", line 300, in _scan_cols
 199     ) = _get_returning_modifiers(compiler, stmt)
 200   File "/usr/lib64/python3.6/site-packages/sqlalchemy/sql/crud.py", line 750, in _get_returning_modifiers
 201     and stmt.table.implicit_returning
 202 AttributeError: 'Join' object has no attribute 'implicit_returning'