Render lib 1.4.3 causes player wide player model to be slim forcibly.

- With renderlib 1.4.3

- without renderlib 1.4.3

Reproduced with just mixinbootstrap and renderlib 1.4.3.

Here are my logs if you want to see them, though I found nothing of significance https://mclo.gs/4gR0Nmg

Apologies, somehow didn't see the issue template before making this issue, will make a new one following the issue template.