Keep an underscore in indexed content in Relevanssi

HowTo Code Snippets
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1

Keep an underscore in indexed content in Relevanssi on child sites.

Snippet Type

Execute on Child Sites

Snippet

add_filter( 'relevanssi_punctuation_filter', 'rlv_adjust_punctuation' );
function rlv_adjust_punctuation( $replacements ) {
    $replacements['_'] = '';
    return $replacements;
}