From 8fce97dca96925eb7c7af9d47be0ef183e9a4a9f Mon Sep 17 00:00:00 2001
From: Leonid Yuriev <leo@yuriev.ru>
Date: Mon, 4 Jan 2021 18:06:00 +0300
Subject: [PATCH] mdbx: fix `mdbx_cursors_eot()`.

Change-Id: I6021ff019f25110db96f9ef351d31a1f48b76c18
---
 src/core.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/core.c b/src/core.c
index 6a865485..40f9363d 100644
--- a/src/core.c
+++ b/src/core.c
@@ -6005,13 +6005,11 @@ static void mdbx_cursors_eot(MDBX_txn *txn, const bool merge) {
         if (stage == MDBX_MC_WAIT4EOT /* Cursor was closed by user */)
           mc->mc_signature = stage /* Promote closed state to parent txn */;
         else if (merge) {
-          /* Preserve changes from nested to parent txn */
+          /* Restore pointers to parent txn */
           mc->mc_next = bk->mc_next;
           mc->mc_backup = bk->mc_backup;
           mc->mc_txn = bk->mc_txn;
-          *bk->mc_db = *mc->mc_db;
           mc->mc_db = bk->mc_db;
-          *bk->mc_dbistate = *mc->mc_dbistate;
           mc->mc_dbistate = bk->mc_dbistate;
           if (mx) {
             if (mx != bk->mc_xcursor) {