From 943bb552a25f7f7c6cc16db5774bd170ff001a13 Mon Sep 17 00:00:00 2001
From: Leonid Yuriev <leo@yuriev.ru>
Date: Tue, 26 Jan 2021 10:28:39 +0300
Subject: [PATCH] mdbx: fix GC-slot cleanup inside `mdbx_update_gc()` in extra
 rare complex cases.

More for https://github.com/erthink/libmdbx/commit/5f1b6847195c8e2587c891537e82a72db9937800 and https://github.com/erthink/libmdbx/issues/123

Change-Id: I1b78d6be2babf9ffdd0b77e7b1ee53d1313977bb
---
 src/core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core.c b/src/core.c
index ad6c779d..227ee61d 100644
--- a/src/core.c
+++ b/src/core.c
@@ -8080,8 +8080,10 @@ retry_noaccount:
           goto bailout;
 
         if (MDBX_PNL_SIZE(txn->tw.lifo_reclaimed)) {
-          if (need_cleanup)
+          if (need_cleanup) {
             mdbx_txl_sort(txn->tw.lifo_reclaimed);
+            cleaned_gc_slot = 0;
+          }
           gc_rid = MDBX_PNL_LAST(txn->tw.lifo_reclaimed);
         } else {
           mdbx_tassert(txn, txn->tw.last_reclaimed == 0);