"The Polish border is stormed! Crowds of Ukrainians". There were any disturbing videos on the Internet

On the twitter account of the Warsaw territory of the Confederation of the Polish Crown, there was a recording on which we can see how supposedly thousands of people from Ukraine who are trying to get to Poland. The post rapidly became an online viral. The problem is that no Ukrainian "attack on the border" is there. And the recording is the work of a pro-Russian propagandaist.