Fixes the lack of the Comparator interface for the Deletion Index.

quartz/src/main/java/com/vitorpamplona/quartz/events/DeletionEvent.kt

@@ -38,6 +38,8 @@ class DeletionEvent(
 
     fun deleteAddresses() = taggedAddresses()
 
+    fun deleteAddressTags() = tags.mapNotNull { if (it.size > 1 && it[0] == "a") it[1] else null }
+
     companion object {
         const val KIND = 5
         const val ALT = "Deletion event"

quartz/src/main/java/com/vitorpamplona/quartz/events/DraftEvent.kt

@@ -115,7 +115,7 @@ class DraftEvent(
             pubKey: HexKey,
             dTag: String,
         ): String {
-            return ATag(KIND, pubKey, dTag, null).toTag()
+            return ATag.assembleATag(KIND, pubKey, dTag)
         }
 
         fun create(