How a 1929 war could break the naval treaty system

What happens to the naval treaty system if Japan must replace ships lost in a hypothetical war around 1929?

Replacement of losses is treated as permissible, but continued wartime construction could prompt Japanese withdrawal and leave only limits on individual ships.

The scenario places a hypothetical war between the PRC and Imperial Japan in 1929. It uses the possibility of replacing war losses to ask whether Japan would still accept the next naval settlement. Replacing individual ships is distinguished from choosing to continue a sustained building programme during wartime. Japanese withdrawal could then undermine the wider system of negotiated fleet totals. Britain, the United States, France, and perhaps Italy might retain limits on individual ship size and armament while abandoning cumulative national allowances.