This is the official advisory on the long story that started with WebKit breaking their SVN repository.
After a long discussion and several iterations of fixes to the code, it was decided that outright rejecting such content is the only reasonable option.
I am mainly linking this to make the youngsters among us aware that decisions they make today will still carry relevance 10 years from now. Choose your hashes and your designs carefully!
Oh, and if you do happen to be responsible for an SVN server, updates should be out next week.