Unable to export DateTime custom fields with dateformat

Unable to export DateTime custom fields with dateformat.

Steps to reproduce:

1. Create two custom fields with types Date and DateTime.
2. Edit an issue and add value to these custom fields
3. On the template use the following code:

   ${dateformat(“dd-MM-yyyy”):Date}
   ${dateformat(“dd-MM-yyyy HH:mm:ss”):DateTime}
   

4. The DateTime is not exported (The mapping is not added to the data map. I believe it has something to do with the regex and the ":" on the dateformat string).