fetch: Fix various issues related to zig fetch --save
#17715
| Job | Run time |
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| 2h 35m 21s | |
| 4h 16m 17s | |
| 2h 35m 48s | |
| 1h 3m 46s | |
| 1h 16m 1s | |
| 1h 12m 19s | |
| 2h 49m 58s | |
| 1h 34m 26s | |
| 24m 3s | |
| 28m 29s | |
| 18h 16m 28s |