Symbol with ANCHORPOINT isn't displayed correctly with map_resolution=288

[wirkus]

I have a problem with printing symbols with anchorpoint on MapServer version 7.1-dev with map_resolution=288 :
I tested a layer with symbols with anchorpoint (svg, pixmap, truetype). I want to set the anchorpoint on the buttom center of my symbol.

• Print 72 dpi (default): symbols are displayed at the anchorpoint. -> everything ist ok
  

• Print 288 dpi (with map_resolution=288): symbols aren't displayed at the anchorpoint. They are displayed in the center of the symbol.
  

SYMBOL
    NAME 'wind_anchor'
    TYPE SVG
    IMAGE '..3501_1.svg'
    ANCHORPOINT 0.5 1
END

LAYER
		NAME "anchorpoint"
		STATUS ON
		TYPE POINT
		SIZEUNITS METERS  #SIZEUNITS pixels same effect
                 ...
		CLASS	
			NAME "svg_anchorpoint"
                        STYLE
	                          SYMBOL "wind_anchor"
                                  SIZE 28
	                          MINSIZE 24 
	                          MAXSIZE  32
                       END
                END

[iljya]

Perhaps you could attach the SVG file you are using for the symbol? I recently ran into a strange issue with SVG symbols and it was due to width/height not being specified in the top-level element. See:
https://gist.github.com/iljya/e67a2a245c6968e685c11498a8361fe0