Avoid KeyNotFoundException
Avoid KeyNotFoundException

zmaruo/lucenenet,sisve/lucenenet,apache/lucenenet,apache/lucenenet,jpsullivan/lucenenet,NightOwl888/lucenenet,laimis/lucenenet,apache/lucenenet,jeme/lucenenet,NightOwl888/lucenenet,laimis/lucenenet,antiufo/lucenenet,apache/lucenenet,mdissel/lucene.net,zmaruo/lucenenet,NightOwl888/lucenenet,jpsullivan/lucenenet,NightOwl888/lucenenet,mdissel/lucene.net,antiufo/lucenenet,sisve/lucenenet,jeme/lucenenet,jeme/lucenenet,jeme/lucenenet