Transaction ID limited to 16chars when exporting event participations

When you export contributions you get a full Transaction ID, but when you export the Event Participations the Transaction ID is limited to 16 chars.

The cause is: the Temp Table creates a 16 char field for Transaction ID on line 1278
if (substr($fieldName, -3, 3) == '_id')

{ $sqlColumns[$fieldName] = "$fieldName varchar(16)"; }

Solution: create an exception for Transaction ID
if ($fieldName == "componentpaymentfield_transaction_id" ){ $sqlColumns[$fieldName] = "$fieldName varchar(255)"; }
elseif (substr($fieldName, -3, 3) == '_id') { $sqlColumns[$fieldName] = "$fieldName varchar(16)"; }

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A more general solution might be needed if there are more "_id" fields that need a larger field