https://bugzilla.wikimedia.org/show_bug.cgi?id=56226

       Web browser: ---
            Bug ID: 56226
           Summary: Invalid marker: UNIQ7fcfb94d3c323dfe-h-0--QINU
           Product: MediaWiki
           Version: 1.22-git
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: Unprioritized
         Component: Parser
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected]
    Classification: Unclassified
   Mobile Platform: ---

Created attachment 13596
  --> https://bugzilla.wikimedia.org/attachment.cgi?id=13596&action=edit
stack trace

When a commons user went to edit a section of [[Commons:COM:SCOPE]] they got a
fatal exception (Actual exception text courtesy of Reedy. Stack trace attached)
:

2013-10-27 14:18:21 mw1050 commonswiki: [4672fc92]
/w/index.php?title=Commons:Project_scope&action=edit&section=13   Exception
from line 77 of
/usr/local/apache/common-local/php-1.22wmf22/includes/parser/StripState.php:
Invalid marker:UNIQ7fcfb94d3c323dfe-h-0--QIN

(Presumably somewhere along the exception logging code, the \x7F actually gets
treated as a backspace, removing the leading space and the trailing U).

Give that \x7fUNIQ7fcfb94d3c323dfe-h-0--QINU\x7f is a valid strip marker
(provided that 7fcfb94d3c323dfe is the correct magic number), this raises
somewhat of a mystery. Suggests that maybe something is calling
$wgParser->parse somewhere inbetween from a hook or something.

Although everyone seems ready to blame translate, filing in mediawiki as
translate doesn't actually appear in the stack trace, so not a lot of evidence
yet.

(as an aside, this can be reproduced by putting the exact text from the stack
trace into special:expandtemplates. Thus far I have not been able to reproduce
locally. Still investigating)

Relavent links on wiki:
https://commons.wikimedia.org/wiki/Commons:Village_pump#MediaWiki_error_message_when_editing_Commons:Project_scope
(
https://commons.wikimedia.org/w/index.php?title=Commons:Village_pump&oldid=108125046
)

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