testing/libgpod: Installing libgpod breaks /tmp directory permissions

$ sudo apk add libgpod
(1/1) Installing libgpod (0.8.3-r5)
Executing busybox-1.34.0-r3.trigger
Executing eudev-3.2.10-r1.trigger
OK: 5618 MiB in 1355 packages
$ ls -l / | grep tmp
 12K drwxr-xr-x   9 root root  12K Sep 15 08:58 tmp
$ sudo apk del libgpod
(1/1) Purging libgpod (0.8.3-r5)
Executing busybox-1.34.0-r3.trigger
Executing eudev-3.2.10-r1.trigger
OK: 5617 MiB in 1354 packages
$ ls -l / | grep tmp
 12K drwxrwxrwt   9 root root  12K Sep 15 08:58 tmp

Quick search reveals that some folks had this problem back in 2011, and it was supposedly fixed in Slackware with a patch, see thread. No clue where this patch could be found, and I couldn't find anything similar in Debian.

cc @fcolista, you're listed as the maintainer for the libgpod package