Yesterday's style issue seems to been just one of inattention, finally,

but I've a new one. (Actually while the preview SHOWS the sidebar you have to choose it specifically, too.)
Some tags I added to a_paris don't want to be with a capital letter and I cannot rename them accordingly either. (paris:1er & paris.) Which messes up the whole hierarchical list.
I don't understand why. Maybe I'm just too tired? That might be just it.