Yeah, this is normal, but most restaurants would notice and make another batch.
That's assuming the 17 year old working the fryer still gives a crap.
If they have an idiot boss screaming at them to go faster they'll go "fuck it, hollow mozza sticks for all".
I once ordered a quarter pounder with cheese and they had a normal patty in it. lol I felt so played.
:lol
I never did that but did the opposite sometimes. Customer orders a Whopper Jr right at closing and we only had whopper meat left, They got whoppers instead. Do the same with fries. Just give them larges if there was enough fries left. We were just going to throw it out anyway.