Ukraine has reacted angrily after protesting Polish farmers poured Ukrainian grain from lorries onto the ground at a border crossing. The action was “despicable and shameful,” the mayor of the western Ukrainian city of Lviv, Andriy Sadovyi, said. Writing on the Telegram platform on Monday, he said that “Ukrainians are literally watering the fields where this grain grows with their blood. Harvesting wheat in a field where a war has taken place is like the work of a mine remover.” Sadovyi called the Polish farmers “pro-Russian provocateurs.” On Sunday, a Polish farmers’ association published a v…