more admin delete checks

Author: kate-signal

SignalServiceKit/Messages/Interactions/AdminDelete/AdminDeleteManager.swift

@@ -52,14 +52,6 @@ public class AdminDeleteManager {
         deleteAuthor: Aci,
         tx: DBWriteTransaction,
     ) throws(TSMessage.RemoteDeleteError) {
-        guard
-            let groupModel = groupThread.groupModel as? TSGroupModelV2,
-            groupModel.membership.isFullMemberAndAdministrator(deleteAuthor)
-        else {
-            logger.error("Failed to process admin delete for non-admin")
-            throw .invalidDelete
-        }
-
         guard
             let deleteAuthorId = recipientDatabaseTable.fetchRecipient(
                 serviceId: deleteAuthor,
@@ -93,6 +85,14 @@ public class AdminDeleteManager {
             throw .invalidDelete
         }
 
+        guard
+            let groupModel = groupThread.groupModel as? TSGroupModelV2,
+            groupModel.membership.isFullMemberAndAdministrator(deleteAuthorAci)
+        else {
+            logger.error("Failed to process admin delete for non-admin")
+            throw .invalidDelete
+        }
+
         if
             let threadUniqueId, let messageToDelete = InteractionFinder.findMessage(
                 withTimestamp: sentAtTimestamp,