XE-864: New macro for selecting an attachment name to use in an object property Done. Patch from Marta Girdea applied with some changes and additional velodoc/jsdoc.
XE-864: New macro for selecting an attachment name to use in an object property
Done.
Patch from Marta Girdea applied with some changes and additional velodoc/jsdoc.

git-svn-id: cf27bad30c6b7316185bdac65b014e8c16cd40b6@35661 f329d543-caf0-0310-9063-dda96c69346f

xwiki/xwiki-enterprise,xwiki/xwiki-enterprise