Okular simply does not show them. I will include the svg and pdf files in the next msg, as it is not possible to include them with the current bug tracking system together with this report.
Created attachment 26544 [details] the converted PDF file
Created attachment 26545 [details] the original inkscape file
Fixed in poppler >= 0.11.3
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.