From 75d62c030398ae8f36aec2d464fae57050e66dcf Mon Sep 17 00:00:00 2001
From: SChernykh <sergey.v.chernykh@gmail.com>
Date: Fri, 29 Oct 2021 10:34:53 +0200
Subject: [PATCH] SideChain: cleanup m_seenBlocks when pruning old blocks

---
 src/side_chain.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/side_chain.cpp b/src/side_chain.cpp
index 4a5411b..9fe4bc8 100644
--- a/src/side_chain.cpp
+++ b/src/side_chain.cpp
@@ -1539,6 +1539,7 @@ void SideChain::prune_old_blocks()
 					auto it2 = m_blocksById.find(block->m_sidechainId);
 					if (it2 != m_blocksById.end()) {
 						m_blocksById.erase(it2);
+						m_seenBlocks.erase(block->m_sidechainId);
 						delete block;
 						++num_blocks_pruned;
 					}