I already wrote about this bug and fixed it, but from the new version it appeared again!
So, if a piston is installed at the end of the world and the piston is activated then the block will simply not be destroyed and it will be possible for the player to go through it (Video) https: //www.youtube.com/watch?v=WXZ7uGxqu44
Do not duplicate your own report. Instead, next time go to MC-82010 and comment that it is still an issue in 1.13.2.