Web History Diff Returns Bogus Error

[davenovak]

A number of files that we have in vault really have no significant history. Since their first checkin, the have been labeled, branched, labeled, and branched again (numerous times), but no source changes were made in the process. Some of these files are up to Version 5 or more (meaning they’ve been branched 5 times or more), but with no changes from the original version #1.

If you do a history on one of these files through the Vault web browser and pick Diff from previous, you will get the following "error":

Unable to retrieve diff.

Error=FailObjectVersionLookup

Unfortunately, I don’t believe that this is a real error as the same operation works fine through the Client GUI, but no differences are found. I think the real problem is that there is only 1 version of the file and Vault Web Diff does not handle this case correctly. Instead of proclaiming there is an error (in big, bold red type), it should say that the files are identical.

[lbauer]

Could you provide or post a sample file history so we can try to reproduce this?

I'm also wondering if there might be a problem with using the web client on your network -- similar to the Blame issue you posted elsewhere on the forum.

If you try this history diff on the server machine itself, using "localhost" for the server name, do you get the same results?

[davenovak]

Yes -- same problem when running on Vault server as localhost. Also note that if there really is a different version out there, all is well.

The attached pictures show a sample history from a file that has never changed and the error that you get when clicking on Diff from previous.

[lbauer]

I was able to reproduce this. I'll log it as a bug.

Update -- it was already in the bug database. I added a link to this post. It's on the list of possible fixes for Vault 4.0.