Buttons on GPW Woman's Gimnasterka

[Will]

Supposedly the buttons on a woman's gimnasterka were reversed from the man's version. Most all of the photos that I've seen seem to indicate that that was the case.

But I was recently looking at what was described as a WW II period woman's gimnasterka on which the buttons were not reversed.

So how firm of a "rule" was this? In other words, was it fairly common for a woman's gimnasterka to button in the same way as the man's version?