Hi Everyone,

I was just trying to upgrade from 3.0.1 to 4.4. as I figured I can't save 
XWikiPreferences anymore:


13:07:17,307 
[http://0x64plusxwiki.local.0x64plus.de:8080/xwiki/bin/saveandcontinue/XWiki/XWikiPreferences]
 
[http://0x64plusxwiki.local.0x64plus.de:8080/xwiki/bin/save/XWiki/XWikiPreferences]
 ERROR .AbstractFlushingEventListener  - Could not synchronize database state 
with session 
org.hibernate.StaleObjectStateException: Row was updated or deleted by another 
transaction (or unsaved-value mapping was incorrect): 
[com.xpn.xwiki.objects.IntegerProperty#<?xml version="1.0" encoding="UTF-8"?>

<showcomments></showcomments>
]
        at 
org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1769)
…



Is there any way to fix this?
Or force the save of my current XWikiPreferences?

Thanks in advance,
Florian
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