* ps/weak-sha1-for-tail-sum-fix: ci: exercise unsafe OpenSSL backend builtin/fast-import: fix segfault with unsafe SHA1 backend bulk-checkin: fix segfault with unsafe SHA1 backend
* ps/weak-sha1-for-tail-sum-fix: ci: exercise unsafe OpenSSL backend builtin/fast-import: fix segfault with unsafe SHA1 backend bulk-checkin: fix segfault with unsafe SHA1 backend