I suspect that you are hitting upstream bug https://fedorahosted.org/sssd/ticket/1436 that was fixed in the upstream release 1.9.0 beta 7 (commit bdbf4f169e4d5d00b0616df19f7a55debb407f78)
I'm not sure where the "domain_type" comes from, the SSSD has no option called domain_type. If it fixed your problem, it must have been purely by accident.
I suspect that you are hitting upstream bug https:/ /fedorahosted. org/sssd/ ticket/ 1436 that was fixed in the upstream release 1.9.0 beta 7 (commit bdbf4f169e4d5d0 0b0616df19f7a55 debb407f78)
I'm not sure where the "domain_type" comes from, the SSSD has no option called domain_type. If it fixed your problem, it must have been purely by accident.