Drupal blocks are syncing?

I am trying to enable a new theme on a 开发者_如何学Gosite running Drupal 6.16. I enable it fine, it has its own namespace in the theme and theme registry.

However when you go to the Blocks section, changing a block here will affect that blocks placement in all the other themes, and vice versa.

Is this normal behavior? Where should I begin looking to solve this issue?

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Yes, it is indeed normal behavior.

It's purpose is to allow the website designers/maintainers to put their customized content into a block, and place the block where they would like it. Then, when they apply a skin, or several, that block is skinned, but it's placement and content does not change.