which was fairly recently fixed in the 8.5.3 release. what we found was that some source control products were changing the line breaks in our files, and this caused many diffs on a later compare. Your steps did not include a push to a source control product, but it did seem to be inferred, and this seems like it could be the cause.
At this stage, since 8.5.3 will ship relatively soon, I would advise people to wait to use the team development features in 8.5.3 rather than use this OpenNTF early version.
Please reply here to be sure I see any response sooner.