fix #382
fix #382

Always initialize mls_results_.
fskuka/pcl,drmateo/pcl,v4hn/pcl,chenxingzhe/pcl,LZRS/pcl,LZRS/pcl,sbec/pcl,jeppewalther/kinfu_segmentation,chatchavan/pcl,DaikiMaekawa/pcl,locnx1984/pcl,MMiknis/pcl,chatchavan/pcl,fskuka/pcl,raydtang/pcl,KevenRing/pcl,wgapl/pcl,nikste/pcl,ipa-rmb/pcl,damienjadeduff/pcl,chenxingzhe/pcl,kanster/pcl,msalvato/pcl_kinfu_highres,simonleonard/pcl,nh2/pcl,zavataafnan/pcl-truck,shivmalhotra/pcl,fanxiaochen/mypcltest,pkuhto/pcl,srbhprajapati/pcl,drmateo/pcl,simonleonard/pcl,stefanbuettner/pcl,ipa-rmb/pcl,stefanbuettner/pcl,3dtof/pcl,closerbibi/pcl,kanster/pcl,krips89/pcl_newfeatures,damienjadeduff/pcl,drmateo/pcl,Tabjones/pcl,shangwuhencc/pcl,jakobwilm/pcl,srbhprajapati/pcl,3dtof/pcl,shyamalschandra/pcl,nikste/pcl,chatchavan/pcl,drmateo/pcl,the-glu/pcl,nh2/pcl,nikste/pcl,starius/pcl,zhangxaochen/pcl,pkuhto/pcl,kanster/pcl,wgapl/pcl,MMiknis/pcl,msalvato/pcl_kinfu_highres,fanxiaochen/mypcltest,lebronzhang/pcl,KevenRing/vlp,Tabjones/pcl,srbhprajapati/pcl,KevenRing/pcl,locnx1984/pcl,the-glu/pcl,KevenRing/vlp,raydtang/pcl,srbhprajapati/pcl,raydtang/pcl,zhangxaochen/pcl,mikhail-matrosov/pcl,sbec/pcl,3dtof/pcl,stefanbuettner/pcl,LZRS/pcl,shyamalschandra/pcl,v4hn/pcl,mschoeler/pcl,shivmalhotra/pcl,KevenRing/vlp,v4hn/pcl,mschoeler/pcl,zavataafnan/pcl-truck,chenxingzhe/pcl,kanster/pcl,fskuka/pcl,msalvato/pcl_kinfu_highres,sbec/pcl,stfuchs/pcl,jeppewalther/kinfu_segmentation,simonleonard/pcl,zavataafnan/pcl-truck,Tabjones/pcl,shyamalschandra/pcl,jeppewalther/kinfu_segmentation,the-glu/pcl,zhangxaochen/pcl,chenxingzhe/pcl,ipa-rmb/pcl,nikste/pcl,ResByte/pcl,shyamalschandra/pcl,cascheberg/pcl,ipa-rmb/pcl,ipa-rmb/pcl,jakobwilm/pcl,lydhr/pcl,lydhr/pcl,msalvato/pcl_kinfu_highres,lydhr/pcl,jakobwilm/pcl,lebronzhang/pcl,srbhprajapati/pcl,3dtof/pcl,fanxiaochen/mypcltest,KevenRing/pcl,krips89/pcl_newfeatures,drmateo/pcl,kanster/pcl,mikhail-matrosov/pcl,locnx1984/pcl,krips89/pcl_newfeatures,damienjadeduff/pcl,stefanbuettner/pcl,mikhail-matrosov/pcl,lydhr/pcl,locnx1984/pcl,shivmalhotra/pcl,cascheberg/pcl,MMiknis/pcl,shangwuhencc/pcl,starius/pcl,chatchavan/pcl,zhangxaochen/pcl,lebronzhang/pcl,jeppewalther/kinfu_segmentation,Tabjones/pcl,closerbibi/pcl,stfuchs/pcl,RufaelDev/pcc-mp3dg,cascheberg/pcl,shyamalschandra/pcl,pkuhto/pcl,shivmalhotra/pcl,MMiknis/pcl,lebronzhang/pcl,Tabjones/pcl,nh2/pcl,raydtang/pcl,nh2/pcl,krips89/pcl_newfeatures,chenxingzhe/pcl,mschoeler/pcl,wgapl/pcl,lebronzhang/pcl,stfuchs/pcl,damienjadeduff/pcl,RufaelDev/pcc-mp3dg,LZRS/pcl,DaikiMaekawa/pcl,fanxiaochen/mypcltest,ResByte/pcl,starius/pcl,zhangxaochen/pcl,jakobwilm/pcl,soulsheng/pcl,starius/pcl,sbec/pcl,cascheberg/pcl,jeppewalther/kinfu_segmentation,RufaelDev/pcc-mp3dg,mschoeler/pcl,mschoeler/pcl,locnx1984/pcl,krips89/pcl_newfeatures,3dtof/pcl,simonleonard/pcl,mikhail-matrosov/pcl,KevenRing/vlp,DaikiMaekawa/pcl,v4hn/pcl,jakobwilm/pcl,mikhail-matrosov/pcl,fskuka/pcl,zavataafnan/pcl-truck,soulsheng/pcl,closerbibi/pcl,sbec/pcl,the-glu/pcl,stfuchs/pcl,v4hn/pcl,cascheberg/pcl,raydtang/pcl,wgapl/pcl,the-glu/pcl,lydhr/pcl,closerbibi/pcl,wgapl/pcl,starius/pcl,msalvato/pcl_kinfu_highres,closerbibi/pcl,stfuchs/pcl,DaikiMaekawa/pcl,shivmalhotra/pcl,pkuhto/pcl,pkuhto/pcl,shangwuhencc/pcl,KevenRing/vlp,KevenRing/pcl,fanxiaochen/mypcltest,soulsheng/pcl,DaikiMaekawa/pcl,damienjadeduff/pcl,LZRS/pcl,MMiknis/pcl,shangwuhencc/pcl,simonleonard/pcl,nikste/pcl,soulsheng/pcl,ResByte/pcl,soulsheng/pcl,zavataafnan/pcl-truck,stefanbuettner/pcl,RufaelDev/pcc-mp3dg,KevenRing/pcl,ResByte/pcl,RufaelDev/pcc-mp3dg,ResByte/pcl,shangwuhencc/pcl,fskuka/pcl