infinite loop when bad login username

[rvalyi]

if we pass a wrong username, then we see that kind of loop:

D, [2016-05-10T18:21:34.687202 #2717] DEBUG -- : OOOR object service: rpc_method: execute, db: db, uid: false, pass: #, obj: product.template, method: fields_get, *args: [false, {}]
D, [2016-05-10T18:21:34.693830 #2717] DEBUG -- : session for uid: false has expired, trying to login again
D, [2016-05-10T18:21:34.693969 #2717] DEBUG -- : OOOR login - db: db, username: bla
D, [2016-05-10T18:21:34.704783 #2717] DEBUG -- : OOOR login - db: db, username: bla
D, [2016-05-10T18:21:34.716906 #2717] DEBUG -- : OOOR object service: rpc_method: execute, db: db, uid: false, pass: #, obj: product.template, method: fields_get, *args: [false, {}]
D, [2016-05-10T18:21:34.724852 #2717] DEBUG -- : session for uid: false has expired, trying to login again
D, [2016-05-10T18:21:34.725025 #2717] DEBUG -- : OOOR login - db: db, username: bla
D, [2016-05-10T18:21:34.734912 #2717] DEBUG -- : OOOR login - db: db, username: bla
D, [2016-05-10T18:21:34.746291 #2717] DEBUG -- : OOOR object service: rpc_method: execute, db: db, uid: false, pass: #, obj: product.template, method: fields_get, *args: [false, {}]
D, [2016-05-10T18:21:34.751559 #2717] DEBUG -- : session for uid: false has expired, trying to login again