Additional output folder added in 2.4?

[Michael Morrison]

I've been developing a custom Eclipse help plugin using DITA OT 2.3.1.  I then upgraded to DITA OT 2.4.3 (on another machine), and my output gains extra folder depth that I didn't expect.  What have I overlooked?  I'd like the output folder structure to remain as it was for 2.3.1.

DITA 2.3.1 Output:

[my_help]

commonltr.css

myHelp.css

plugin.xml

myditamap.xml

index.xml

-- [Concepts]

-- [Images]

-- [Reference]

-- [Tasks]

-- [Topics]

I set the output.dir: 

<property name="output.dir" location="${dita.dir}${file.separator}..${file.separator}MyOutput${file.separator}testMyEclipseOLHPlugin${file.separator}my_help"/> 

DITA OT 2.4.3 Output:

[my_help]

commonltr.css

myHelp.css

plugin.xml

-- [source_dir_name]

-- -- myditamap.xml

-- -- index.xml

-- -- [Concepts]

-- -- [Images]

-- -- [Reference]

-- -- [Tasks]

I set the output.dir:

<property name="output.dir" location="${dita.dir}${file.separator}..${file.separator}dita_output${file.separator}my_help"/>  

For this build, I set generate.copy.outer because without it, the output copies my [Images] folder to a subfolder of a folder that is parallel with the [my_help] folder -- which doesn't work at all. 

<property name="generate.copy.outer" value="3"/>