Titles & Metas > Media warning box

Hi,

I just noticed that in Titles & Metas > Post Types > Media I have a warning box that says:
“Take note:
As you are redirecting attachment URLs to parent post URLs, these settings will currently only have an effect on unattached media items!

So remember: If you change the attachment redirection setting in the future, the below settings will take effect for *all* media items.”

And then the only thing that’s filled in is the title template field as “%%title%% %%page%% %%sep%% %%sitename%%”

Can anyone tell me what this warning means?
Thanks

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