experimental.collectionfix8463 is a Plone product to only fix the #8463 Plone bug with Collection content type. The fix to this bug has already been released for Plone 3.3.6 and above, so you need this only for old version of Plone (Plone 3.0, 3.1...). Also you don't need this if you use TinyMCE instead of kupu WYSIWYG editor.
This product give to your Plone 3 site fixed versions of the four templates where you can find the bug, applying changeset r120628 (collective) and r37779 (plone).
· Plone CMS
What's New in This Release: [ read full changelog ]
· fixed dependency to Plone 3.3.5 and lower, not lower than 4.0 [keul]
· fixed compatibility for Plone 3.2 and below. The suggestion in the ticket to use templates from 3.3 was wrong (due to Link changes) [keul]