Seemingly out of the blue, the Gulp processing I had set up for this site started to have a race condition. I'd run my
watch command, change some CSS, and the processing would sometimes leave behind some extra files that were meant to be cleaned up during the processing. Like the cleanup tasks happened before the files landed in the file system (or something... I never really got to the bottom of it).
Nevermind about the specifics of that bug. … Read article