haskell_indent_case_alternate=1 does not use the haskell_indent_case setting

[pydronia]

When creating a new line underneath a case statement with haskell_indent_case_alternate set to 1, the line is indented to the default shiftwidth value, not the value set under haskell_indent_case.

function x = case x of
          _ <- cursor is here if shiftwidth is set to 10