Steps to reproduce:
1. Create a Site Template.
2. Create a Structure with a text field and variable name "something"
3. Create a Template with parent Structure from 2, and template "$something.data"
4. Create Web Content from Template with "This is the test data" entered for field "something".
5. Place on page of Site Template.
6. Create Site from Site Template.
7. Error, notice the content of the Web Content is not properly displayed. Instead, the code of the Velocity Template is rendered.
Could also affect Export of LARs and Staging.