Does SVN support merging into sparse checkouts?

I'm trying to merge a branch into a sparse checkout (all the files I touched in the branch are included in the checkout) and I'm getting the following error:

Cannot reintegrate into a working copy not entirely at infinite depth

Does t开发者_如何学运维his mean what I think it means? That you have to have a fully recursive checkout in order to merge into?

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Just an update for anybody that stumbles across this (like I did)...

SVN 1.7 now supports this functionality. I haven't tried to reintegrate yet but merging a range of revisions seems to work well.

TortoiseSVN 1.7 also has some nice features for working with sparse checkouts.

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Merging into a full checkout worked, this is anecdotal evidence that you cannot merge into a sparse checkout.