It came up again with <https://bugs.gentoo.org/show_bug.cgi?id=449918>, and I think it's worth to think about a better fix. I still keep hitting mysterious collisions with orphaned files from time to time.
How about switching the developer profile from collision-protect to protect-owned, and proceeding with enabling protect-owned by default for all profiles? (not all developers are using the developer profile) Paweł
signature.asc
Description: OpenPGP digital signature