Text resizes when MC resizes?

I have a generic MC with a dynamic textfield in it. When I use 2 instances of this MC on the main stage and resize one of them to be longer, that MC’s textfield also gets bigger. When I make the MC shorter the text field gets smaller.

Is there a way to make it so the textfield stays the same size no matter if I change the length of the MC?

Here’s a file if it helps.