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-rw-r--r--src/network/serverpackethandler.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/network/serverpackethandler.cpp b/src/network/serverpackethandler.cpp
index 4647bcc04..91caee0bd 100644
--- a/src/network/serverpackethandler.cpp
+++ b/src/network/serverpackethandler.cpp
@@ -1511,7 +1511,8 @@ void Server::handleCommand_InventoryFields(NetworkPacket* pkt)
if (peer_state_iterator != m_formspec_state_data.end()) {
const std::string &server_formspec_name = peer_state_iterator->second;
if (client_formspec_name == server_formspec_name) {
- if (fields["quit"] == "true")
+ auto it = fields.find("quit");
+ if (it != fields.end() && it->second == "true")
m_formspec_state_data.erase(peer_state_iterator);
m_script->on_playerReceiveFields(playersao, client_formspec_name, fields);