Function replace_during_poll_callback

tests/test_watcher.c:2935–2944

} replace_during_poll_ctx_t;

static int replace_during_poll_callback(const char *name, const char *path, void *ud) {
    (void)path;
    replace_during_poll_ctx_t *ctx = ud;
    ctx->calls++;
    /* Re-registering can happen when a second daemon session initializes while
     * this project's watcher snapshot is being polled. The old state must stay
     * alive until the snapshot finishes using it. */
    cbm_watcher_watch(ctx->watcher, name, ctx->replacement_root);
    return 0;
}

TEST(watcher_replace_during_poll_defers_old_state_free) {
    char original[256];