Bug #551: CRASH: Dies in WODebug recordCleanExit

From a user submitted crash report (will attach):

Thread 0 Crashed: 0 <> 0xfffeff18 objc_msgSend_rtp + 24 1 com.apple.CoreFoundation 0x907d3300 __CFDictionaryDeallocate + 616 2 com.apple.CoreFoundation 0x907bcf34 _CFRelease + 240 3 com.apple.CoreFoundation 0x907d32c0 __CFDictionaryDeallocate + 552 4 com.apple.CoreFoundation 0x907bcf34 _CFRelease + 240 5 com.apple.CoreFoundation 0x907d32c0 __CFDictionaryDeallocate + 552 6 com.apple.CoreFoundation 0x907bcf34 _CFRelease + 240 7 com.apple.CoreFoundation 0x907d32c0 __CFDictionaryDeallocate + 552 8 com.apple.CoreFoundation 0x907bcf34 _CFRelease + 240 9 com.apple.CoreFoundation 0x907d32c0 __CFDictionaryDeallocate + 552 10 com.apple.CoreFoundation 0x907bcf34 _CFRelease + 240 11 com.apple.CoreFoundation 0x9080be0c synchronizeXMLDomain + 76 12 com.apple.CoreFoundation 0x9080bdb0 _CFPreferencesDomainSynchronize + 36 13 com.apple.CoreFoundation 0x9080e2f0 __CFPreferencesPerformSynchronize + 28 14 com.apple.CoreFoundation 0x907d5290 CFDictionaryApplyFunction + 280 15 com.apple.CoreFoundation 0x9080e2b4 _CFSynchronizeDomainCache + 80 16 com.apple.CoreFoundation 0x9080e230 _CFApplicationPreferencesSynchronizeNoLock + 24 17 com.apple.CoreFoundation 0x9081a0f8 CFPreferencesAppSynchronize + 88 18 com.wincent.WODebug 0xd20037ec 0xd2000000 + 14316 19 com.apple.Foundation 0x92960ad8 _nsnote_callback + 180 20 com.apple.CoreFoundation 0x90804010 __CFXNotificationPost + 368 21 com.apple.CoreFoundation 0x907fc0ec _CFXNotificationPostNotification + 684 22 com.apple.Foundation 0x9294aee0 -[NSNotificationCenter postNotificationName:object:userInfo:] + 92 23 com.apple.AppKit 0x9378eea0 -[NSApplication terminate:] + 244 24 com.apple.Foundation 0x92960ad8 _nsnote_callback + 180 25 com.apple.CoreFoundation 0x90804010 __CFXNotificationPost + 368 26 com.apple.CoreFoundation 0x907fc0ec _CFXNotificationPostNotification + 684 27 com.apple.Foundation 0x9294aee0 -[NSNotificationCenter postNotificationName:object:userInfo:] + 92 28 com.apple.AppKit 0x937213a0 -[NSWorkspace _applicationStatusChange:] + 372 29 com.apple.AppKit 0x936f08d4 -[NSApplication sendEvent:] + 4172 30 com.apple.AppKit 0x936e7d10 -[NSApplication run] + 508 31 com.apple.AppKit 0x937d887c NSApplicationMain + 452 32 com.wincent.SynergyAdvance 0x000080a0 __darwin_gcc3_preregister_frame_info + 408 33 com.wincent.SynergyAdvance 0x00007ad0 start + 456 34 dyld 0x8fe01048 _dyld_start + 60

The line in WODebug where the crash starts is:

-[WODebugClass00050 recordCleanExit] (in WODebug_ppc_unstripped)

So something problem reading the prefs by the looks of it. Could this be a preferences corruption issue?