[news.eclipse.platform.rcp] Results of product export cached?

[rscott@xxxxxxx (Rich Scott)]

I have been chasing a problem with my product export and metadata 
generation that appears to have been made worse by caching of results from 
the export and it impacting what gets exported the next time. 

The first indication of some caching is that if I delete both the export 
directory and the metadata repository, the repository can end up with 
multiple versions of my plugin's.  If I change the directory name for the 
export, I only get the current version. The other thing that I saw was 
that I was not getting a gopy of org.eclipse.equinox.launcher... in the 
repository. I changed the feature configuration many ways and still could 
not get the plugin exported, even though it would appear in the product 
export directory. If a change the name of the product export directory, I 
started getting the proper artifacts created.

Any ideas where the history is maintained, and how to clear it?

IF not any ideas on what I should be looking for?

Thanks
Rich