Flaky test: //score/mw/com/test/move_semantics/proxy_method/integration_test:move_construct_after_method_call_same_process_test

## Flaky test: `//score/mw/com/test/move_semantics/proxy_method/integration_test:move_construct_after_method_call_same_process_test`

**Cumulative failed runs observed:** 1 (over 100 total runs, 1 nightlies)
**First seen:** 2026-09-01 · **Last seen:** 2026-09-01

### Per-config cumulative

| Config | Failed | Total |
|--------|-------:|------:|
| gcc15-integration | 1 | 100 |

```json
{
"configs": {
"gcc15-integration": {
"failed_runs": 1,
"total_runs": 100
}
},
"cumulative_failed_runs": 1,
"cumulative_total_runs": 100,
"first_seen": "2026-09-01",
"last_seen": "2026-09-01",
"nightly_count": 1,
"target": "//score/mw/com/test/move_semantics/proxy_method/integration_test:move_construct_after_method_call_same_process_test"
}
```

Start with the target //score/mw/com/test/move_semantics/proxy_method/integration_test:move_construct_after_method_call_same_process_test and run it under the gcc15-integration configuration. Investigate the intermittent failure and identify the cause of the move-construction issue; done means the test no longer flakes in repeated runs and the integration configuration passes.

Written by the indexing model from the issue text.