[xwiki-users] Data too long for column 'XWV_UNIQUE_ID' error on save visit statictics

Hello, A new error message just appeared in the logs of my xwiki instance (3.5). This is the message : 2014-02-27 18:06:49,307 [Statistics storing daemon] ERROR .x.x.s.i.x.VisitStatsStoreItem - Failed to save visit statistics object [class com.xpn.xwiki.stats.impl.xwiki.VisitStatsStoreItem XWiki.XWikiGuest 10.210.105.105Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; InfoPath.1; Microsoft Outlook 14.0.7109; ms-office; MSOffice 14) PFEBDVUTJS84C531ZDS26WMNMKJWK1EQ] It seems this is an old issue, see: http://xwiki.markmail.org/thread/sob63ol6csslbfqs But I find nothing in Jira about this subject. Do I have to create one ? Is this issue still present in the last version of XWiki ? Thanks for your advice. Maxime