Russian air strike

Did Russia bomb ISIS with US help?

A report from the Russian Defence Ministry yesterday 23rd January 2017 caused a minor flap when it said that Russian aircraft had bombed ISIS position near Al-Bab on the basis of coordinates provided by the US military.
This caused some excitement, with some seeing this report as the first sign that under the new Trump administration US policy in Syria is at last changing, and that the US and Russia are finally working together to fight ISIS.