Comment 7 for bug 1643708

[Test Case]

create a file with some credentials:

$ echo F23:guest:guest > ~/ntlmcreds.txt
$ export NTLM_USER_FILE=~/ntlmcreds.txt
$ python
import gssapi

spnego = gssapi.raw.oids.OID.from_int_seq('1.3.6.1.5.5.2')
c = gssapi.creds.Credentials(mechs=[spnego], usage='initiate')
tname = gssapi.raw.names.import_name("F23/server", name_type=gssapi.raw.types.NameType.hostbased_service)
ac = gssapi.creds.Credentials(mechs=[spnego], usage='accept')

seci = gssapi.SecurityContext(creds=c, name=tname, mech=spnego, usage='initiate')
seca = gssapi.SecurityContext(creds=ac, usage='accept')
it = seci.step(token=None)
ot = seca.step(token=it)
it = seci.step(token=ot)
ot = seca.step(token=it)
it = seci.step(token=ot)

e = seci.wrap("Secrets", True)
o = seca.unwrap(e.message)

o.message
'Secrets'

So far I checked with GDB that the seq numbers were reset after the MEchListMIC operation happened and started again from 0.