(issue1732) When duplication wsplgen artificats fix shapefile layers The shapefile layers are copied but still contained the old names and paths and the wms layer refered to layers from the old artifact. This was broken. Now the old artificat id is replaced by the new artifact id in the mapfiles. Duplication most wsplgen artifacts should now work.

SYMBOLSET
SYMBOL
  NAME 'point'
  TYPE ELLIPSE
  POINTS
    1 1
  END
  FILLED TRUE
END
SYMBOL
  NAME "square"
  TYPE VECTOR
  POINTS
    0 0
    0 1
    1 1
    1 0
    0 0
  END
  FILLED TRUE
END
END