Incorrect owner after start in 0.0.12

[croessner]

Under Gentoo Linux, right after starting 0.0.12, a file timestamp is created under /var/cache/tlsdate. If the file did not exist before, the file is newly created, but with wrong permissions,

It's created 0600 root:root, so the user tlsdate can no longer access the file, which leads to errors in th blog file.
It also may happen that the file is created, but with zero bytes and then the log says that tlsdate was also unable to read the timestamp.

It really seems that something is broken in 0.0.12 with the file "timestamp". Maybe dropping privileges too early?