Fix stock transaction with incorrect values due to FCB error.

fix_fcb_stock_issue.rb

def fix_fcb_stock(company)
  bills = company.bills.in_foreign_currency.where.not(stock_item_id: nil)

  bills.each do |bill|
    company.stock_mapper.update_stock_entry(bill, force: true)
  end

  stock_transactions = StockTransaction
    .where(stock_item_id: bills.map(&:stock_item_id))
    .where("created_at >= ?", bills.map(&:created_at).min)
    .where(source_item_type: [BankAccountEntry.name, InvoiceItem.name])

  stock_transactions.each do |stock_transaction|
    company.stock_mapper.update_stock_entry(stock_transaction.source_item, force: true)
  end
end