LPS-43945 Finding the earliest article version

Hey Julio,

This bug has been discovered on 6.2, regarding testing staging for a brazilian customer, but it turned out it's actually not related to staging, it's a bug in the web content.

I went ahead and fixed it, I think the code is fine, I was not completely sure about the naming though.

I choose to use the "earliest" because it's an opposite of the term "latest".

If you think I should change then I'll change it. Let me know what you think.

Thanks,

Máté