Created attachment 1091759 [details]
all content view versions listing with invalid ID

Description of problem:
The URL parameters are not checked for validation if the ID really exists. Instead it sometimes continues to run on the all resources instead of a single resource item

Having an invalid ID can happen when you still have the UI open on that ID, but in an other session or through the API the Item is deleted.

Simple reproduction is to use a value of 9999

Example of content view versions with ID 9999 is attached in screenshot
/content_views/9999/versions



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


How reproducible:


Steps to Reproduce:
1. Use invalid ID (e.g. 9999) in the URLs
2.
3.

Actual results:
Unpredictable results, e.g. listing of all items

Expected results:
Failure that the identifier cannot be found


Additional info: