Add workaround for issue updating checked state in react concurrent mode

Editor assessment

The subject states the remedy and its context: a workaround was added for the checked-state update issue in React concurrent mode. The checkbox scope is a proper component noun, the fix type matches, and the honest workaround labeling tells readers the underlying React issue remains external. There is no body, acceptable since the headline frames the scenario and the constraint completely. No footers appear. The lowercase imperative phrasing is clean. Precise, honest, and understandable without the diff. The workaround honesty manages expectations that the underlying React issue remains open.