MIGX contentvalue does not start empty

[Lefthandmedia]

Hi. i noticed that when i create a resource based on a template with a MIGX TV, that the contentvalue of the TV is initialy []. (in prefix_site_tmplvar_contentvalues) This is pretty annoying since i'm also using the :notempty filter. Only when i enter a value in the TV and then remove that value is the contentvalue empty. Can the initial contentvalue for a MIGX TV be really empty please for a newly created resource?