docs(buglog): log follow-ups of the P0 fixes (bug-1958..bug-1966)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

.wolf/bugs/bug-1964.md

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+---
+id: "bug-1964"
+status: "open"
+status_updated: "2026-10-10"
+status_note: "newly logged"
+component: "scheduler"
+severity: "wrong-result"
+timestamp: "2026-10-10T10:16:12Z"
+last_seen: "2026-10-10T10:16:12Z"
+occurrences: 1
+files: ["src/scheduler/src/sim_limit.c", "src/scheduler/src/core_events.c"]
+tags: ["scheduler", "sim", "equivalence", "limit"]
+related: ["bug-1943"]
+---
+
+# bug-1964: xce_scheduler --sim does not re-seed limits when a config push arrives mid-replay
+
+## Description
+**Observed:** (source reading; follow-up of the 2026-10-10 P0 fixes (bug-1936..1957))
+Reported by the bug-1943 fix: the simulator seeds the limit plugin only at bootstrap (`sim_bootstrap_limit_plugin`); a CONFIG_PUSH during replay updates groups (bug-1943) but a new or changed limit config never reaches the limit plugin, while the live scheduler applies it (`plugin_config_update`).
+
+**Expected:** Live and simulated scheduling apply the same limits after a config change.
+**Impact:** Replays that span a limit config change decide differently than live.
+**Found by:** follow-up of the 2026-10-10 P0 fixes (bug-1936..1957)
+## Environment
+- OS: no /etc/os-release; Docker container; NixOS kernel; kernel Linux 6.18.33 x86_64
+- libc: glibc 2.42-47 (interpreter /nix/store/wb6rhpznjfczwlwx23zmdrrw74bayxw4-glibc-2.42-47/lib/ld-linux-x86-64.so.2)
+- Toolchain: gcc (GCC) 15.2.0, meson 1.9.1
+- Build: asan (xce.build)
+- Code: scheduler-framework @ 19be145d-dirty
+- Deployment: any (found by source reading; confirmed by the RED test of the fix)
+
+## Reproduction
+1. Replay a recording with a CONFIG_PUSH that changes a limit; compare decisions with live.
+- Frequency: deterministic (by code reading; confirmed by the RED test of the fix)
+- Evidence: the code sites quoted in Description; no logs kept.
+## Root cause
+TODO: required for fixed/partial
+
+## Fix
+TODO: required for fixed/partial
+
+## Verification
+- Test: TODO: name + file; RED before the fix, GREEN after
+- Suites: TODO: suite results and build profile
+- Live: TODO: soak/deploy run, or n/a and why
+
+## References
+- Related: none