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https://issues.apache.org/jira/browse/JSPWIKI-30?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12580692#action_12580692
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Florian Holeczek commented on JSPWIKI-30:
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I just had the same issue again:
Someone created the page ThisPageDoesNotExist, which is part of a documentation
example.
I've just tried to rename the page to ThisPageDoesExist in order to restore the
doc example, but received an error. Very strange that there was that much text
in it (see attached realerrorpage.txt, I guess that's the page which was erased
by this bug, Main page of http://doc.jspwiki.org/).
When I tried to save this error page, I just received what you can see in the
attachmed Rename.jsp.html. Weird, isn't it?
Well, I hope this will contribute to resolving this bug.
> Rename may cause dataloss
> -------------------------
>
> Key: JSPWIKI-30
> URL: https://issues.apache.org/jira/browse/JSPWIKI-30
> Project: JSPWiki
> Issue Type: Bug
> Components: Core & storage
> Affects Versions: 2.5.139-beta
> Reporter: Janne Jalkanen
> Priority: Critical
> Fix For: 2.8
>
> Attachments: realerrorpage.txt
>
>
> If rename fails due to an exception in PageRenamer, the end result may be
> wiping out of some of the pages that refer to the linking page. The
> preconditions seem to include a complicated link sentence. I managed to get
> this to happen on jspwiki.org by renaming page "MyCodingStandard" to
> "JSPWikiCodingStandard", which resulted in some of the renaming to fail. I
> think some of the links were of the form "my coding standard".
> Suggested correction: let's get rid of the link "guesser", and just modify
> the actual link reference - and if it's missing, we'll add one.
> Note that this is not real dataloss; you can still get the old page from the
> page history. It just causes a new, empty page to be put into the repository.
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