NAN_INF_Killer [TL]
Author: Tony Lyons - http://www.CompositingMentor.com

Kills NaN and Inf pixels using a variety of replacement methods:
Replacement Methods
- Replace with 0
- Replace with Custom Color
- Clone Over
- Blur/Unpremult
- Time
Features
- Keep alpha: Keep the original alpha if the alpha channel does not have NaN or Inf in it. Separates RGB from Alpha in expression.
- Exposed settings: Replace color, transform (for Clone over), blur/unpremult, time offset