The Bug:

Fire charges won't be consumed when igniting creepers with them in survival or adventure mode.

Differently, while igniting a TNT, the fire charge is consumed.

Steps to Reproduce:

1. Obtain a fire charge and switch into survival mode.
2. Summon a creeper and use the fire charge on it.
3. Take note as to whether or not fire charges are consumed when igniting creepers using them in survival or adventure mode.

Observed Behavior:

The fire charge is not consumed.

Expected Behavior:

The fire charge would be consumed.

Code Analysis:

Code analysis by Avoma can be found in this comment.