Exactly the same issue descried in here:
https://issues.apache.org/jira/browse/SANSELAN-21
The problem is that interoperatibility index has the same field id as gps
latitude, but in different directories.
I'm attaching a patch which worked for me. It includes also the patch for
JpegImageMetadata merged from the patch for SANSELAN-21, although it wasn't
necessary in my case.