Pinned tab is locked tab with temporarily changeable address. It resets to pinned address on tab reactivation.
This feature is inspired by Total Commander's Lock tab with changeable address.
Requested by several users. See krusader-users mailing list: https://groups.google.com/forum/#!topic/krusader-devel/wp05sopv1SU
ADDED: Tab pinning - pinned tab is a locked tab with temporarily changeable address