Query Editor preview reloads all previous steps after an edit even if nothing changed

Thanks v-xjiin-msft.

Added a post in ideas at: https://ideas.powerbi.com/forums/265200-power-bi-ideas/suggestions/33828007-disable-rerun-of-all-previous-steps-in-query-edito

Sorry, marked as solution at first, but this issue still prevents me from using PowerBI as a tool for data munging. If it takes 5-10 minutes for Query Editor to refresh and reload all data that hasn't changed before I can add another step, I may forget the next few steps I had in mind. This reloading of all previous data may save on memory, but to prevent preview and additional edits until all previous steps are re-run makes Query Editor unusuable for my data munging workflow.