Column order (col-first/col_md-last) stops working when column witdh (col-5) is specified

[gwerty]

Background:
I'm trying to swap the order of columns between breakpoints, using the method on the docs page under section "Normal flow with ordering (first / last) (can be based on MQ keys)"

Reproduce:
In that section, when you add a size to the column it is breaking the swapped order.

Just change <div class="col_md-first">...</div> to

<div class="col-3_md-first">...</div> on a large screen and you will see what I mean instantly.

I hope you guys can take a look

Additional:
While col_md-12-first does not work, col_md-first-12 does partly work (only on the breakpoint off course)
Using this kind of sizing in a media query would even be a nice workaround, but only if the breakpoint would be mobile-first.. Then I could just do something like: <div class="col_sm-first-12_rest-5">. But now there is no way > 1280px

[KaylaLamp]

This is still an issue, is there any motion to fix this?

First and last is super helpful, but it can barely be used since most times the columns being created are of sizes, which is when they stop working.