onChange methodNothing should happen in the onChange method and the slider should be initialized as normal
Slider is initialized but onChange is ran
https://jsfiddle.net/jgwkd75c/

2.7.8
This is because set.value() is ran in the read.settings() method here https://github.com/fomantic/Fomantic-UI/blob/develop/src/definitions/modules/slider.js#L1002
and read.settings() is ran in the initialize method here https://github.com/fomantic/Fomantic-UI/blob/develop/src/definitions/modules/slider.js#L112
I always assumed this was a feature, dropdown does it too. I do see that a few other modules have a fireOnInit setting, but I'm not sure if it's working on the Rating module. https://jsfiddle.net/x8ue7dmq/
I think not calling onChange by default and offering a fireOnInit for every input would be the most consistent.
Most helpful comment
I always assumed this was a feature, dropdown does it too. I do see that a few other modules have a
fireOnInitsetting, but I'm not sure if it's working on the Rating module. https://jsfiddle.net/x8ue7dmq/I think not calling
onChangeby default and offering afireOnInitfor every input would be the most consistent.