It really likes to cogitate on code from several versions ago. And it often insists repeatedly on edits unrelated to the current task.
I feel like I'm spending more time educating the LLM. If I can resist the urge to lean on the LLM beyond its capabilities, I think I can be productive with it. If I'm going to stop teaching the thing, the least it can do is monitor my changes and not try to make suggestions from the first draft of code from five days ago, alas ...
1 - e.g. a 500-line text file representing values that will be converted to enums, with varying adherence to some naming scheme - I start typing, and after correcting the first two, it suggests the next few. I accept its suggestions until it makes a mistake because the data changed, start manual edits again ... I repeated this process for about 30 lines and it successfully learned how I wanted the remainder of the file edited.