(based on trunk r25439)
When the AJAX framework is enabled some upload checks are not triggered:
SpecialUpload::getExistsWarning:
- if( $file->exists() ) works well
- elseif ( $file_lc && $file_lc->exists() ) not triggered
- elseif ( ( substr( $partname , 3, 3 ) == 'px-' .... not triggered
- if ( $file->wasDeleted() ) not triggered
No issue with $wgUseAjax = false.
Version: 1.11.x
Severity: normal