Display complete hierarchy of the tag in its name.

[languid cargo]

Currently, a tag is displayed like this:
(i.e. only showing "parents" of the tag, "grandparents" are not shown)
(Here, Tag Cardio extends to Exercises which extends to Fitness.)

I am asking to make them display with their full hierarchy like this ("grandparents" are also shown):

Maybe provide users an option so they can choose the max hierarchy level to display.