ipa_haller_jan (WIP): Added QIFEMPTY(). refs #15634

extension/Resources/Private/Report/wiki.qfqr

@@ -257,7 +257,7 @@ sql = SELECT CONCAT('U:id={{pageSlug:T}}&wpId={{wpId:R0}}&print=true'
                           , '|o:', SUBSTRING_INDEX(pathFileName, '/', -1)
                           , '|s|b|g:_blank|G:glyphicon glyphicon-paperclip|M:file'
                   ) AS _link
-                  , feUser
+                  , QIFEMPTY(feUser, 'anonymous')
                   , modified
                   , CONCAT('U:table=WikiAttachment&r=', id, '|q:Do you want to delete <i>', SUBSTRING_INDEX(pathFileName, '/', -1), '</i> ?') AS _paged
       FROM WikiAttachment