MediaWiki talk:Titleblacklist-custom-repeated-namespace-prefix

Protected edit request on 13 October 2016

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Found an existing bug (since 2012) involving its appearance on Special pages. The scenario today (previously confined to "Category:Category:"):

If a user (unable to override the blacklist) attempts to move a page unintentionally to a title with a prefix like "Wikipedia:Wikipedia:" (example), this custom message now pops up. Unfortunately, {{PAGENAME}} and {{FULLPAGENAME}} would return a redlinked "MovePage" and "Special:MovePage", which is a very misleading error message in the form. Like the recent fix to MediaWiki:Protectedinterface, a check of the namespace number will fix the problem.

The following code would solve that issue. Please replace the page with the following:

{{fmbox 
| type  = editnotice
| image = [[File:Ambox warning yellow.svg|40px|link=]]
| text  = '''You appear to be trying to {{#ifexpr:{{NAMESPACENUMBER}} < 0
  |create a page with (or move a page to) a title with a double-namespace prefix. This is likely a title naming error.
  |{{#ifexist:{{PAGENAME}}|view|create}} [[:{{PAGENAME}}]] but are actually about to create [[:{{FULLPAGENAME}}]]'''
* If you are trying to {{#ifexist:{{PAGENAME}}|view|create}} '''[[:{{PAGENAME}}]]''', just follow the {{#ifexist:{{PAGENAME}}||red}} link.}}
* If this is the page you want to create, please make a request at [[Wikipedia:Administrators' noticeboard]].
}}

(Tested output appearance in preview, looks good.) Thanks, — Andy W. (talk) 06:44, 13 October 2016 (UTC)[reply]

Done — Martin (MSGJ · talk) 11:46, 13 October 2016 (UTC)[reply]