On Mon, Jan 22, 2018 at 10:50:43PM +1100, Gavin McDonald wrote:
> As per the subject, I was checking through the forrest svn-site mailing list 
> archives [1] and noticed that every time (usually David) publishes the 
> Forrest website, two pdf changes to the same two documents (v13 and v20) are 
> always published as well - even though they are clearly not part of the 
> changes that triggered the publish in the first place.
> 
> Do we know why? 

Yes. There is some discussion and issues in the archives, but sorry i have no 
time to find it.

IIRC, it has something to do with the generation of the PDFs by FOP.
It rewrites some metadata (perhaps "date") every time.

As you can see from [1] i just let it deploy anyway.

You may find also that there is some generated image that changes for no 
apparent reason.
This flip-flops depending on the operating system of the person doing the 
deployment.
We have not seen it for a while, as it has been only me doing the publishing.

-David

> Gav…
> 
> [1] -  https://lists.apache.org/list.html?site-...@forrest.apache.org:2017-10 
> <https://lists.apache.org/list.html?site-...@forrest.apache.org:2017-10> 
> 
>