From a7b429c193fb6b00cdf217e0e0bac0784babf66a Mon Sep 17 00:00:00 2001
From: Rongli Sun <rongli@google.com>
Date: Fri, 7 May 2021 22:54:02 +0800
Subject: [PATCH] [dua] fix unnessary reregistration (#6591)

---
 src/core/thread/dua_manager.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/core/thread/dua_manager.cpp b/src/core/thread/dua_manager.cpp
index 382481184..c8a1b3982 100644
--- a/src/core/thread/dua_manager.cpp
+++ b/src/core/thread/dua_manager.cpp
@@ -524,6 +524,7 @@ void DuaManager::PerformNextRegistration(void)
 
     mIsDuaPending   = true;
     mRegisteringDua = dua;
+    mDelay.mValue   = 0;
 
     // Generally Thread 1.2 Router would send DUA.req on behalf for DUA registered by its MTD child.
     // When Thread 1.2 MTD attaches to Thread 1.1 parent, 1.2 MTD should send DUA.req to PBBR itself.