Found a reason: if parent page is fully backuped after child's split then
forgetIncompleteSplit() isn't called at all.
Hope, attached patch fix that. Pls, test it.
PS I'm going away for weekend, so I'll not be online until Monday.
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Teodor Sigaev E-mail: teodor@sigaev.ru
WWW: http://www.sigaev.ru/