gh-128636: Fix crash in PyREPL when os.environ is overwritten with an invalid value
#11815
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os.environ is overwritten with an invalid value
#11815
| Job | Run time |
|---|---|
| 22s | |
| 23s | |
| 22s | |
| 21s | |
| 23s | |
| 24s | |
| 21s | |
| 22s | |
| 2m 58s |