Laptop data tags
Found a bug with the laptop data tags
Break the laptop twice, then try to merge the items. You will see that the data is gone from both the items Only seems to happen in Creative mode.
This also happens with printed paper. Which is a problem when printing large amounts of money, I mean images.
https://gyazo.com/c6646911872432b7faeee4416ba05232
Thanks for the report. I've narrow it down too to only happen in Creative mode. The problem is that Creative Mode allows the client to send serialized itemstack from Client to Server. When you're in Survival, everything happens from Server to Client for validation. I'm looking for a fix because it's desperately needed due to the fact that the laptop has a lot of data.
Also note that this only happens when you are on server's too!
This was supposedly fixed in https://github.com/MinecraftForge/MinecraftForge/pull/3776 but it looks like the issue is deeper and the pull request did not fix all possible situations.