PLEASE DON'T OVERRIDE CLIENT'S VARIABLES NAME STRACTURE, OR AT LEAST DOCUMENT THIS

[DanMaxic]

we wasted 4 hours on debugging why custom variables are automatily changed from '_' to '.' ,
Please fix or add documantaion

steps/graduated/helm/lib/EntrypointScriptBuilder.py

Line 67 in e4129d3

custom_values = {}

[vmelikyan]

this is still an issue