Re-reported version of MC-167972 as requested.

The bug

If an item is sufficiently damaged so that its remaining durability is a negative number, the durability bar can become incredibly long in the negative direction depending on damage level.

How to reproduce

1. Execute the following command:

   /give @s golden_pickaxe{Damage:2147483647}

2. Observe

Expected results

No idea what I was expecting with this one. Prior to 1.15, it'd display as empty. In Alpha, it would refill in the normal direction as solid red.

Actual results

Comically long durability bar.