When using Subversion's "list tags" parameter, the default value associated with a listtags parameter is only taken into account for automatically triggered builds. In the parameter selection UI for a manual build the default value is simply ignored: the "list tags" dropdown always has the first item selected.

If a default value is given for a "list tags" parameter, and this default value is present in the values shown in the dropdown, then the corresponding option in the dropdown should be pre-selected (when parameterising a manual build).

The attached patch implements the desired behaviour.