Cannot copy/ paste data from owncloud to Qt-applications

Please follow this step-by-step procedure

• Start QtTestBrowser compiled against qt-5.4.0
• Insert this link in the location bar: demo.owncloud.org
• Hit enter
• You will be automatically logged into a testing area
• Click on file "README.md"
• File opens
• Select some text with the mouse
• Hit CNTL-C
• Try to insert this text in the searchbar or the locationbar with CNTL-V or to another application

It is not possible.

Reference: https://github.com/QupZilla/qupzilla/issues/1038