Timezones with links are broken on ubuntu 16.04 about puppet-timezone HOT 3 CLOSED

root@puppet:/etc/puppetlabs/code/environments/production# cat manifests/site.pp
class { '::timezone': timezone => 'America/Chicago' }
root@puppet:/etc/puppetlabs/code/environments/production# puppet agent -t
<...>
Info: Computing checksum on file /etc/localtime
Info: FileBucket got a duplicate file {md5}d0f076c9f390e7d8a933cc7cc1ad2e90
Info: /Stage[main]/Timezone/File[/etc/localtime]: Filebucketed /etc/localtime to puppet with sum d0f076c9f390e7d8a933cc7cc1ad2e90
Notice: /Stage[main]/Timezone/File[/etc/localtime]/ensure: ensure changed 'file' to 'link'
<...>
root@puppet:/etc/puppetlabs/code/environments/production# date
Wed Dec 20 15:22:31 UTC 2017
root@puppet:/etc/puppetlabs/code/environments/production# ls -l /etc/localtime 
lrwxrwxrwx 1 root root 13 Dec 20 15:22 /etc/localtime -> ../US/Central
root@puppet:/etc/puppetlabs/code/environments/production# git -C modules/timezone checkout v3.4.0
<...>
HEAD is now at 0ec84f1... new release v3.4.0, fixes #36, fixes #39
root@puppet:/etc/puppetlabs/code/environments/production# puppet agent -t
<...>
Notice: /Stage[main]/Timezone/File[/etc/localtime]/ensure: defined content as '{md5}d0f076c9f390e7d8a933cc7cc1ad2e90'
<...>
root@puppet:/etc/puppetlabs/code/environments/production# date
Wed Dec 20 09:23:20 CST 2017