Last time such promise was given to African Union leader, they blew up large Ukrainian grain storage in Mykolaiv.
These are nonsense claims that do not have any actual honest resolve behind them.
I hope that it's true. Right now, Russian leadership is condemning millions to famine as a political maneuver.
Predictable public image laundering for Putin ("see? I'm a good boy! I don't want to starve half the world!") in sight of the G20 summit which will take place -surprise- in Indonesia next fall - what a coincidence.
Putin wants to get there as a world leader in search of new allies among those less aligned with the EU and NATO, and not as the war criminal he is.