filter out messages with a duplicated address (#661)
filter out messages with a duplicated address (#661)


nibanks/openthread,mszczodrak/openthread,jjlee9/openthread,pvanhorn/openthread,GiedriusM/openthread,lanyuwen/openthread,erja-gp/openthread,fbsder/openthread,nibanks/openthread,aeliot/openthread,JakubBrachTieto/openthread,JakubBrachTieto/openthread,bukepo/openthread,aeliot/openthread,abtink/openthread,vaas-krish/openthread,jwhui/openthread,georgecpr/openthread,jjlee9/openthread,jwhui/openthread,LeZhang2016/openthread,aeliot/openthread,LeZhang2016/openthread,pvanhorn/openthread,turon/openthread,nibanks/openthread,mszczodrak/openthread,gandreello/openthread,jjlee9/openthread,openthread/openthread,Zolertia/openthread,librasungirl/openthread,openthread/openthread,LeZhang2016/openthread,abtink/openthread,chshu/openthread,chshu/openthread,librasungirl/openthread,aeliot/openthread,librasungirl/openthread,jwhui/openthread,chshu/openthread,JakubBrachTieto/openthread,abtink/openthread,georgecpr/openthread,xiaom-GitHub/openthread,georgecpr/openthread,nibanks/openthread,xiaom-GitHub/openthread,GiedriusM/openthread,gandreello/openthread,jjlee9/openthread,bukepo/openthread,jjlee3/openthread,xiaom-GitHub/openthread,vaas-krish/openthread,nibanks/openthread,erja-gp/openthread,gandreello/openthread,lanyuwen/openthread,erja-gp/openthread,georgecpr/openthread,mszczodrak/openthread,turon/openthread,xiaom-GitHub/openthread,vaas-krish/openthread,mszczodrak/openthread,chshu/openthread,jjlee3/openthread,fbsder/openthread,Zolertia/openthread,mszczodrak/openthread,JakubBrachTieto/openthread,gandreello/openthread,LeZhang2016/openthread,srickardti/openthread,jjlee3/openthread,erja-gp/openthread,pvanhorn/openthread,xiaom-GitHub/openthread,lanyuwen/openthread,GiedriusM/openthread,lanyuwen/openthread,LeZhang2016/openthread,chshu/openthread,georgecpr/openthread,jjlee3/openthread,aeliot/openthread,srickardti/openthread,openthread/openthread,gandreello/openthread,jjlee9/openthread,fbsder/openthread,Zolertia/openthread,mszczodrak/openthread,vaas-krish/openthread,JakubBrachTieto/openthread,erja-gp/openthread,GiedriusM/openthread,nibanks/openthread,xiaom-GitHub/openthread,jjlee3/openthread,erja-gp/openthread,jwhui/openthread,Zolertia/openthread,pvanhorn/openthread,lanyuwen/openthread,openthread/openthread,fbsder/openthread,pvanhorn/openthread,bukepo/openthread,jjlee9/openthread,gandreello/openthread,LeZhang2016/openthread,abtink/openthread,pvanhorn/openthread,vaas-krish/openthread,turon/openthread,bukepo/openthread,JakubBrachTieto/openthread,librasungirl/openthread,lanyuwen/openthread,vaas-krish/openthread,GiedriusM/openthread,Zolertia/openthread,srickardti/openthread,aeliot/openthread,turon/openthread,georgecpr/openthread,fbsder/openthread,chshu/openthread,fbsder/openthread,srickardti/openthread