I would presume that a person with more severe/retractable epilepsy and/or prolonged postictal states could influence ASD behaviour. In much the same way that being ill or overtired can bring out irritable or less social-able behaviour in anyone.
I expect it would also complicate things in cases where the seizures are so frequent they cause learning difficulties.
But, as shown by the responders with epilepsy, it wouldn't change the ASD itself.
_________________
Diagnosed with:
Moderate Hearing Loss in 2002.
Autism Spectrum Disorder in August 2015.
ADHD diagnosed in July 2016
Also "probable" dyspraxia/DCD and dyslexia.
Plus a smattering of mental health problems that have now been mostly resolved.