Tests: add a test for worlds to not modify the itempool after create_items
#3312
| Job | Run time |
|---|---|
| 48s | |
| 1m 5s | |
| 1m 53s |
create_items
#3312
| Job | Run time |
|---|---|
| 48s | |
| 1m 5s | |
| 1m 53s |