When a table is versionable, and a field on the table uses an uppercase character, the field will always set to null in the version table.

This is because AudtiLog?->setTableDefinition() uses the table column definitions to pass to VersionTable?->hasColumns(). The column definitions only contain lowercase column names, and not the proper fieldNames. When the record is saved/updated, the AuditLog? Listener merges the record into the version record, but the values are not set because the field names do not match.

This is a suggested fix for the AuditLog?->setTableDefinitions() function (I added the fields array):

    public function setTableDefinition()
    {
        $name = $this->_options['table']->getComponentName();
        $columns = $this->_options['table']->getColumns();
	$fields = array();
		
        // remove all sequence, autoincrement and unique constraint definitions
        foreach ($columns as $column => $definition) {
            //reset the name
            $fields[$this->_options['table']->getFieldName($column)] = $columns[$column];
            unset($columns[$column]['autoincrement']);
            unset($columns[$column]['sequence']);
            unset($columns[$column]['unique']);
        }

        $this->hasColumns($fields);

        // the version column should be part of the primary key definition
        $this->hasColumn($this->_options['versionColumn'], 'integer', 8, array('primary' => true));
    }