Created attachment 796620 [details]
Error message window

Description of problem:
When creating new content specs in the web-UI, get error message if don't save changes in stages and then have to start over.

Version-Release number of selected component (if applicable):
Build 201309081012

How reproducible:
100%

Steps to Reproduce:
1. Click 'create spec'
2. Paste spec in 'content spec' tab (don't save yet)
3. Click 'tags'
4. Pick writer and click 'add' (e.g., JBDS, Assigned Writer, mmurray)
5. Error message:
"Uncaught exception was detected. Redirecting you to the home page.
Exception: Exception caught: The displayed collection item to reference a valid entity and have a valid tags collection."

Work around:
At step 2, after pasting content spec text click save. Then add tags and save again.