server.jar is reporting wrong version

This jar is reporting that its 21w19a.  Downloaded from here:

https://www.minecraft.net/en-us/article/minecraft-snapshot-21w20a

link at bottom of the page points to https://launcher.mojang.com/v1/objects/d0a9151432af384f5f2ca72e8e43422772158d0e/server.jar