Does using the bidet forcefully to facilitate defecation invalidate the fast, especially with the uncertainty of water reaching the interior of the body?

Using the aforementioned bidet invalidates the fast if it leads to water reaching the interior of the body, because it then falls under the ruling of an enema, which breaks the fast according to the majority of scholars. However, if it is not certain that the water reached the interior of the body, then the fast is valid and is not invalidated except with certainty.