Greetings - seems like some new behavior in latest update.
Code is auto-formatted, and removes tabs and spacing. For example the first line is reformatted to the second line…
(has tab between x and =)
let x = 0
(tab removed x and =)
let x = 0
This means I can’t have code indented or equal statements aligned, etc.
Since it is hard to see in this post, here’s a screenshot
Latest Postman seems to have decided to edit all my code! 
I’m running:
Postman for Linux
Version 7.24.0
linux 4.15.0-99-generic / x64
p.s. - it continues to reformat new code as well, if I fix the code to my preference, then save the call, close the tab, and re-open the tab, it is once again postman-fixed without asking and had then re-saved the call on top of my code.
Having a standard style is a good, idea. Not allowing opt-in is bad. Automatically editing and saving code is super-bad IMHO. I never asked to have my code edited.