@lohkdesgds

So what is it? What should I do?
It's bizarre that you can copy anything to anything but not a text into a Lock tag. 

Should I call it a suggestion to a new feature?

I called it a bug because this is the only one tag that doesn't follow the new format :/

I am creating a datapack. It should work with any name. How am I gonna do this? There's a way to copy a name to Lore, there's a way to copy name from one to another, but I can't copy its name as a key for a chest because it doesn't copy the name itself / Lock doesn't work with this format of name ( {"text":"key"} ). That's the thing.

I know just using commands like that knowing the name is easy, but it is not possible to do this automatically with a datapack / function / commandblock

Maybe it's an op thing because non-op cannot use /effect. I cannot test it right now with more than one op, maybe it's just a return bug from the command.

I downloaded from https://minecraft.net/pt-br/article/minecraft-113-pre-release the server.jar, opened, changed the eula.txt to true, opened again and then joined localhost on Minecraft. Then I just "/op <me>" and tried the command "/effect give @a minecraft:absorption" in game.

It doesn't happen if you wait some seconds, but still a bug if you want to teleport an amor stand faster. Used "/tp @e[type=minecraft:armor_stand] @s" for testing.
Can confirm on 1.13-pre5

Can confirm for 1.13-pre5
Opening the 1.13-pre5 server, giving op and running "/effect give @a minecraft:absorption" will kick an op.
Running the same command on console will return "An unexpected error occurred trying to execute that command" but will work.

Can confirm in 1.13-pre5.

It happens when you're breaking towards north. Put a torch somewhere and start breaking to north and the bug will happen.

Still on 1.13-pre5

Confirmed

I tested, and it's possible if you do " /recipe give @p * ". In survival without that command I didn't get that recipe for 2x2.

Since 16w32a...
https://youtu.be/SolIU2jf5lA?t=8m10s

Still on 1.11....

It works a little better now, but if you have more than ~20 servers in your list and you "spam" F5 it thinks as much as you press, so updates this amount of time (shouldn't it ignore new F5 or forget the old ping request?)

I guess it pings every server and then think "oh, he pressed F5, let me try ping again" << if you pressed 20 times, it will loop 20 times the list, so if there's offline servers maybe it will take more time to do.

I lost my old list, made a new one with 18 servers. It was hard to test because when I reported I guess the offline servers helped me with the test (I guess, just thinking about the timing for pinging).

Sorry being offline that time, I had lost my acc ;-; ~ Now it's ok

I have something like that. I saw chunks glitching/reloading in my server when playing in this new version. Sometimes it seems to lag, but when I turn down the render and try again it stops (luck?)...

It only bugs this way when you load complex and/or too far (32 chunks or amplified worlds in 16+chunks) O.o