Deal with June 2016 false positive scenarios

Originally created by @bertagaz on #11087 (Redmine)

As defined in #10993 (closed), check is there are still some of them and tag them as fragile if any (see #10288 (closed))

Edited May 15, 2020 by bertagaz

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information