Jump to page on search results doesn't reflect region filter

Searching for say Star Trek Region 1 DVDs produces 7 pages of results, including only region 1 DVDs. However if you then click Jump to page 2, you are presented with many more pages of results and region 2 DVDs intermixed.
The Jump to URL on the search results should retain the .../DVD1/... instead of defaulting to .../DVD/...
Thanks,
Chris
The Jump to URL on the search results should retain the .../DVD1/... instead of defaulting to .../DVD/...
Thanks,
Chris