sergiogonzalez/liferay-portal — pull request #255 by matethurzo (2012-05-09 16:10:24+00:00)
Title: [TECH SUPPORT] LPS-26497

Hi Sergio, This is an upgrade issue. The problem basically is when you first have .jpg and .tiff enabled for your image gallery. Then you can remove the .tiff for example from the property and when the upgrade comes you will copy over only the .jpg file to the dl.file.extensions property only, then the upgrade will fail, first on the migration, second on generating the previews. Thanks, Mate