I've found a very annoyng bug in Photoshop.
Check this PSD https://www.dropbox.com/s/b1qgimuwi6gy49s/Character%20Style%20Bug.psd
There are two text layers for Point text.
Eeach one created from scratch (no cloning)
Each is connected to character style.
"Second style" layer was modifed in Character Panel (not Character Style) - the color was changed.
Now in Character Style panel there is a "+" sign near layers style.
I'm trying to click on Clear Override button which should reset all text layer params back to linked style.
BUT! Nothing happens and plus sign remains.
There is also an issue with type size. If you scale type using transform, it will mess up your paragraph style settings. From what Adobe said, it has something to do with the order in which the changes are applied. This might be along those lines also as the settings are applied in different places: char panel vs char style.