fix bug where 'all outlet types' filter excludes outlets with no outlet type set
fix bug where 'all outlet types' filter excludes outlets with no outlet type set

gmimano/commcaretest,SEL-Columbia/commcare-hq,qedsoftware/commcare-hq,qedsoftware/commcare-hq,puttarajubr/commcare-hq,SEL-Columbia/commcare-hq,qedsoftware/commcare-hq,qedsoftware/commcare-hq,puttarajubr/commcare-hq,gmimano/commcaretest,dimagi/commcare-hq,puttarajubr/commcare-hq,dimagi/commcare-hq,gmimano/commcaretest,qedsoftware/commcare-hq,dimagi/commcare-hq,dimagi/commcare-hq,SEL-Columbia/commcare-hq,puttarajubr/commcare-hq,dimagi/commcare-hq