Trinidad has two trunks. One (1.0.x) is for JSF 1.1 and the other trunk (1.2.x) is for JSF 1.2.
All bug fixes MUST be applied to both trunks (1.0.x AND 1.2.x). This is important to have synced Trinidad releases. There are two cases where the fix only needs to go into one of the trunks (1.0.x OR 1.2.x). If your fix is only working with JSF 1.2, then create a patch against the 12_x trunk. In case it is only for JSF 1.1, create the fix against the 1.0.x trunk.
The URLs to the trunks are:
1.2.x trunk: http://svn.apache.org/repos/asf/myfaces/trinidad/trunk_1.2.x/
1.0.x trunk: http://svn.apache.org/repos/asf/myfaces/trinidad/trunk/trinidad/