r23054: Move the check for the lookup_domain of S-1-22-{1,2} before the

r23054: Move the check for the lookup_domain of S-1-22-{1,2} before the
check for IS_DC.  Otherwise we will for example fail to lookup a
sid of S-1-22-1-780 because it has no valid struct winbindd_domain*
in the list.   Thanks to Simo for the catch.