api: Fixed fictionalDate being Jan 1, 1970 instead of null if none is set.

rpdata/api/Comment.js

@@ -18,7 +18,7 @@ class Comment {
     this.author = author
     this.characterName = characterName
     this.character = character != null ? CommentCharacter.fromData(character) : null
-    this.fictionalDate = new Date(fictionalDate)
+    this.fictionalDate = fictionalDate != null ? new Date(fictionalDate) : null
     this.createdDate = new Date(createdDate)
     this.editedDate = new Date(editedDate)
     this.source = source