Missing xmltotext.xslt in kopano-search at Ubuntu 18.04 LTS

After installing kopano-search 8.6.80.988-0+141.1, the following error was raised:

Jun 10 21:49:09 tux kopano-search[24595]: warning: failed to load external entity "/usr/lib/python2.7/dist-packages/kopano_search/xmltotext.xslt"

The only obvious way to work around this issue was to download https://raw.githubusercontent.com/Kopano-dev/kopano-core/master/installer/searchscripts/xmltotext.xslt and put it to /usr/lib/python2.7/dist-packages/kopano_search/xmltotext.xslt followed by a restart of the service.

But shouldn’t this file be part of the kopano-search package by default?
@fbartels maybe you can take a look at that issue?

I have the same problem on Ubuntu 16.,04.

Currently using kopano-search 8.6.80.865-0+123.1 amd64