[MC-225280] All attributes edited using "/attribute" command reset after going back from End

What I expected to happen was...:
The attributes were suppossed to keep after going back from End

What actually happened was...:
The attributes actually reset after going back from End

Steps to Reproduce:
1. Use "/attribute" command for example like this: "attribute @p minecraft:generic.max_health base set 40"
2. Return back from End after defeating Ender Dragon
3. All attributes reset back to original. Something interesting about it is that how many HP you had is still visually visible, but it is actually reset

Linked issues

duplicates

MC-181604 Exiting the end portal resets player attributes to their default values

Comments

Avoma 2021-05-11T12:34:14Z

Duplicate of MC-181604.

migrated 2021-05-11T13:39:34Z

Even though it is a duplicate, it actually shows how to correctly do this. MC-181604 is actually a story of what happened.

migrated 2021-05-11T13:40:50Z

But it has a Mojang Priority

Avoma 2021-05-11T13:43:12Z

@unknown, the parent ticket of this issue (MC-181604) may not describe this issue as well as you did in this report, however, MC-181604 has an assigned "Mojang Priority", which means that Mojang themselves have confirmed for this to be an issue.

migrated 2021-05-11T13:57:54Z

I already know this. So I shouldn't make this thread.

anthony cicinelli 2021-05-11T14:01:49Z

@unknown please don't trash your reports just because they were resolved