[pmwiki-users] Warning message about two WikiGroups with identical $GroupTitle

[Shujun LI]

Hi all,

I have two WikiGroups: ABC_cn and ABC_en, each of which has its own local customization files (local/ABC_cn.php and local/ABC_en.php).
The titles of both WikiGroups are changed to ABC with the help of the GroupTitle recipe.
With this setting, the following warning message is always displayed at the top of any page of WikiGroup ABC_en:

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Warning: Cannot modify header information - headers already sent by (output started at /home/PmWiki/local/ABC_en.php:1) in home/PmWiki/pmwiki.php on line 884

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It looks like that ABC_en has some conflicts with ABC_cn as they share the same title ABC.

BTW, I am using the latest stable version of PmWiki: 2.1.26.

Shujun