@IKhitron A search for insource:/ISBN[1-9]/ didn't find any pages needing correction (there are false positives for ref names being ISBN123, ISBN123 in a URL and infoboxes having parameter names of ISBN1 etc.). So doesn't seem worth adding?

I saw many of these in checkwiki, @Rjwilmsi, and fixed them. So it can happen again.

Be careful of isbn10 parameter

Στις 30 Νοε 2016 18:14, ο χρήστης "IKhitron" <
no-reply@phabricator.wikimedia.org> έγραψε:

IKhitron added a comment.

I saw many of these in checkwiki, @Rjwilmsi
https://phabricator.wikimedia.org/p/Rjwilmsi/, and fixed them. So it
can happen again.

*TASK DETAIL*
https://phabricator.wikimedia.org/T145093

*EMAIL PREFERENCES*
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*To: *IKhitron
*Cc: *Rjwilmsi, Aklapper, Reedy, Magioladitis, Liuxinyu970226, IKhitron,
JJMC89, Grind24, Reguyla, Dinoguy1000