content duplicates after saving

Hey,

i’ve noticed a bug after saving content in a Template specific field.
When i save the text a duplicate will appear additionally to what i’ve entered originally.

Original:
[:de]
<h1 style=”text-align: center;”>Datenschutz</h1>
[:en]
<h1 style=”text-align: center;”>private policy</h1>
[:]

after saving the page:
[:de][:de]
<h1 style=”text-align: center;”>Datenschutz</h1>
[:en]
<h1 style=”text-align: center;”>private policy</h1>
[:][:]

after saving again:
[:de][:de][:de]
<h1 style=”text-align: center;”>Datenschutz</h1>
[:en]
<h1 style=”text-align: center;”>private policy</h1>
[:][:][:en]
<h1 style=”text-align: center;”>private policy</h1>
[:]

qtranslate version 3.4.6.8

Just in case…
Here’s the link to the theme i used:
http://heythemers.com/documentation/calafate/index.html
Thanks