This is a discussion topic for the Ore project, Unsafe Blocks. View the full project on Ore for downloads and more information.
This plugin adds the unsafe reserved6, info_update, and info_update2 blocks to your server so you can do /get and interact with them as normal blocks.
The usage of this plugin is not recommended, but you are free to use if you really want that blocks.
This plugin requires PowerNukkit 220.127.116.11+ to work