You can clone with
The views try to display "Unknown" as a true Rack object, we get:
AttributeError at /ui/racks//rack/: 'unicode' object has no attribute 'model'
AttributeError at /ui/racks//add_device/: 'unicode' object has no attribute 'venture'
Thank you for your bug report. We will fix it on next release.
fixed Issue #183 (github)