Anyone here know how to work around the persistent long lines bug?

There is a problem that was at least in the February CTP and the April CTP, that a package will enter a state of being slow to open and always put up a message box saying
(the message box does not allow copying the text, or I would post it verbatim, but it is something about extremely long lines of text, and that the product will run slowly)

I've asked in the newsgroups if there is a file that I could edit, manually inserting carriage returns to try to hack around this bug, but never got an answer there, so I thought I'd try here. (Actually, I think I was told that the bug was fixed, but it has persisted here into the April CTP.)
Does anyone here know a way to fix or hack around this bug, or have tried editing some file (dtsx, dtproj, sln, suo, I don't know) to fix it?

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Hi Perry,

You are right; this problem should be fixed in the latest builds (June CTP). The file that complained about long lines is dtsx file. I would not recommend going in and inserting new lines in this file, it could create a bigger mess.

The best thing for fixing it would be to install June CTP build, load the package and save it again using the new build.
Thanks,