I have ~/Library/Application Support/TextMate synced between two computers via Dropbox (Mackup). Today, when I launched 2.0-beta 6.8 for the first time, com.macromates.TextMate.preview segfaults, and does so for every subsequent launch.
Console shows this prior to the crash:
TextMate[11231]: CoreData could not fulfill a fault for '0xff880002b x-coredata://47E84A6D-2744-440D-ABA2-CE0276F6DD6C/PasteboardEntry/p16354'
When I remove Library/Application Support/TextMate/ClipboardHistory.db*, it can start again.
-MinRK