fix FirstSentenceId was not properly reset when the sentence was deleted / fix...

fix FirstSentenceId was not properly reset when the sentence was deleted / fix exporting SkillResults

src/app/class/exportUnity/export-unity.ts

@@ -985,7 +985,7 @@ export class ExportUnity {
 
         this.role.rewards.forEach(reward => {
             if (reward instanceof SkillReward) {
-                let skill: UnitySkill = this.exportedRole.Item.find(skl => skl.name == reward.skill.name) as UnitySkill;
+                let skill: UnitySkill = this.exportedRole.Skill.find(skl => skl.name == reward.skill.name) as UnitySkill;
                 if (!results.some(element => element.skillID == skill.ID)) {
                     let resultID: number = this.resultID++;
                     let result: UnityEarnSkillResult = {

src/app/components/dialogs/discussion-dialog/discussion-dialog.component.ts

@@ -98,6 +98,9 @@ export class DiscussionDialogComponent implements OnInit {
           }
         });        
       }
+      if (this.discussion.firstSentenceID == removedSentenceId) {
+        this.discussion.firstSentenceID = -1;
+      }
     });
   }
 
@@ -144,6 +147,9 @@ export class DiscussionDialogComponent implements OnInit {
             }
           }
         }
+        if (this.discussion.firstSentenceID == removedSentenceId) {
+          this.discussion.firstSentenceID = -1;
+        }
       }
     });
   }