Controller functions don't reflect on ctx?

Discord Q&A strapi-questions
73

my code is exactly the same:

export default factories.createCoreController('api::tarif.tarif', ({ strapi }) => ({
 
    async markForDeletion (ctx: Koa.Context, next) {
        console.log('ctx.query:', ctx.query) // undefined

     //therefore fails:
       const update = await strapi.entityService.update('api::tarif.tarif', ctx.query.id, {
                        data: {
                            markForDeletion: true,
                        },
                        });