From 170616949a7ed86662a79a95ec8f4ffeacc449f1 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Thu, 4 Mar 2021 10:55:22 +0100
Subject: related to #6774: rollback before starting async activity

---
 src/backend/taler-merchant-httpd_post-tips-ID-pickup.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/backend/taler-merchant-httpd_post-tips-ID-pickup.c b/src/backend/taler-merchant-httpd_post-tips-ID-pickup.c
index 4ac68578..797d6f25 100644
--- a/src/backend/taler-merchant-httpd_post-tips-ID-pickup.c
+++ b/src/backend/taler-merchant-httpd_post-tips-ID-pickup.c
@@ -817,10 +817,17 @@ RETRY:
       qs = GNUNET_DB_STATUS_SUCCESS_ONE_RESULT;
     if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs)
     {
+      bool rollback = false;
+
       for (unsigned int i = 0; i< pc->planchets_length; i++)
       {
         if (NULL == sigs[i])
         {
+          if (! rollback)
+          {
+            TMH_db->rollback (TMH_db->cls);
+            rollback = true;
+          }
           try_withdraw (pc,
                         exchange_url,
                         &pc->planchets[i],
@@ -830,7 +837,6 @@ RETRY:
       }
       if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs)
       {
-        TMH_db->rollback (TMH_db->cls);
         MHD_suspend_connection (connection);
         GNUNET_CONTAINER_DLL_insert (pc_head,
                                      pc_tail,
-- 
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