Adding THREE.Fire to a scene breaks THREE.OutlinePass

Description of the problem

I’m trying to combine a toon shader, outline pass, pixel pass, and a fire effect in a demo I’m doing and I noticed that when you add a FIRE it breaks OutlinePass for other objects.

Example:
https://jsfiddle.net/xq5m96c8/6/

I think the release and dev branches are labeled wrong here:

• jsfiddle (latest release branch)
• jsfiddle (dev branch)

Three.js version

• Dev
• r108
• …

Browser

• [] All of them
• Chrome
• Firefox
• Internet Explorer

OS

• [] All of them
• Windows
• macOS
• Linux
• Android
• iOS

Hardware Requirements (graphics card, VR Device, …)

P.S. Really loving three.js