Refine loses active hyperlink to reconcile Freebase topics after Gridworks->Refine upgrade

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From Will Snow on the email list:

"I am moving a large project from Gridworks to Google Refine.  The file opens 
no problem and the reconciliations still show as matched, but the links no 
longer open the Freebase link.
...
Yes you are right I DID wait to upgrade to Refine so I am skipping upgrade 
steps."

Not sure if the problem only happens when skipping upgrade steps (ie skipping 
directly from Gridworks to Refine 2.5) or if it's something that would happen 
anyway with this type of project.

Initial investigation shows that the recon.identifierSpace has ended up as the 
string "null" instead of a real Null or perhaps 
"http://rdf.freebase.com/ns/type.object.mid" (the Freebase namespace)

Original issue reported on code.google.com by tfmorris on 15 Feb 2012 at 9:37

Attachments:

• Packard-Fellows-2.google-refine.tar.gz

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Hi Tom,

More info: I upgraded from Gridworks Version 1.1-r878 .

I did not export a tar file from Gridworks so I don't have a clean file from 
before the upgrade, sorry.  Attached is the earliest i have for this one, but I 
had to retrieve it via G-Refine so it is probably modified.

Refine is great, I'm up and running with your help, thanks!

-Will

Original comment by wdsno...@gmail.com on 17 Feb 2012 at 3:06

Attachments:

• Packard-Fellows-2-deprecated-gw.google-refine.tar.gz

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I also have dead hyperlinks in my cells as a result of undoing and redoing 
reconciliation in the Undo/Redo panel.

Original comment by danpaulsmith on 26 Feb 2012 at 10:58

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Dan - do you have a copy of a project which shows this that we could look at?

Original comment by tfmorris on 26 Feb 2012 at 11:27

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A patch which repairs the damage after the fact is included in r2454, but I 
still don't know what the root cause during the upgrade process.

Original comment by tfmorris on 8 Mar 2012 at 12:38

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Original comment by tfmorris on 8 Mar 2012 at 12:39

• Changed state: Started