This works:

./ImageEditor -f pm2539o.png --project pm2539o_rotatebug.json 

This fails:

./ImageEditor -f pm2539o.png --project pm2539o_rotatebug.json --batch --force --output pm2539o_rotatebug.png

Any rotation not immediately followed by a translation on the 
same layer does not produce the correct output in batch mode, 
although it displays the correct view in the live editor.