https://github.com/bitcoin/bitcoin/blob/d72758c3f6c34cd835f5de3efc230964f3b1ea56/src/torcontrol.cpp#L539

If a user is running Tor proxy outside localhost (perhaps on other host inside LAN or in containerised environment) , the automatic creation of onion services ends up creating an onion service listening to hardcored 127.0.0.1 address on the Tor proxy's host instead of the private address of the bitcoind – effectively running an empty onion service listening the Tor proxy's localhost.
pnode->CloseSocketDisconnect();
                
                pnode->Release();
                vNodesDisconnected.push_back(pnode);
            }
        }
    }
    {
        
        std::list<CNode*> vNodesDisconnectedCopy = vNodesDisconnected;
        for (CNode* pnode : vNodesDisconnectedCopy)
        {
            
            if (pnode->GetRefCount() <= 0) {
                bool fDelete = false;
                {
                    TRY_LOCK(pnode->cs_vSend, lockSend);
                    if (lockSend) {
                        fDelete = true;
                    }
                }
                if (fDelete) {
                    vNodesDisconnected.remove(pnode);
                    DeleteNode(pnode);
                }
            }
        }
    }
}
void CConnman::NotifyNumConnectionsChanged()