JS Bug for adding Properties with non-general Verbs in the Navigation Box

[shinobu]

In the Resource Box:
After Clicking on edit and add resource here, adding a property with a custom Verb (none of the suggestions) leads to a "freezing" gray background. Only a reload solves this without the ability to add the property in the end. It works with suggested Verbs.
Step by Step Picture Guide do reproduce the Bug

Setup:

OntoWiki Develop 456a819

PHP 5.5.9-1ubuntu4.17

Virtuoso Version 07.20.3217-pthreads for Linux as of Jul 4 2016

Erfurt 8340230