[MC-231016] Can summon entities with the same UUID by pausing the game

Summon entity with UUID 0-0-0-0-0

/summon marker 0 0 0 {UUID:[I;0,0,0,0]}

Unload 0-0-0-0-0 entity
```
/tp 0-0-0-0-0 99999 0 0
```
Summon another entity with UUID 0-0-0-0-0
```
/summon marker 0 0 0 {UUID:[I;0,0,0,0]}
```
Unable to summon entity due to duplicate UUIDs
Pause the game about three times.
Summon another entity with UUID 0-0-0-0-0
```
/summon marker 0 0 0 {UUID:[I;0,0,0,0]}
```
Summoned new marker