message: Avoid double `get` call on Map
diff: @@ -87,7 +87,7 @@ import { FluidDataStoreContext, LocalFluidDataStoreContext } from "./dataStoreCo
  return undefined;
  }
  - return this._contexts.get(id) as LocalFluidDataStoreContext;
  + return context as LocalFluidDataStoreContext;
  }
  /**
  