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Fixed array_key_exists() usage in OrderableRows
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@ -63,7 +63,7 @@ class GridFieldOrderableRows extends RequestHandler implements
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$extra = $list->getExtraFields();
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$extra = $list->getExtraFields();
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$table = $list->getJoinTable();
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$table = $list->getJoinTable();
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if(array_key_exists($field, $extra)) {
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if($extra && array_key_exists($field, $extra)) {
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return $table;
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return $table;
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}
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}
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}
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}
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