This addon does not restore the tree structure when using official default session restore!!!!!

I just had a crash, and what do I get when I restore my session?
All the nested tabs structure is GONE, all tabs are at the same level, and half an hour of work rearranging the tabs into trees disappeared into nothingness. Great way to lose my time.

Oh and I won't even bother recreating it, since Quantum does not support operations with multiple tabs, so I'll have to arrange tabs one by one. Only to lose everything on the next crash.

Oh and there is no "Search tabs" feature for some reason now, so when I need it I need to switch to another vertical tabs addon, use it there, then switch back to this one.

At this point in time, Tree Tabs is a vastly superior addon - it has tab groups, tab search and tab multiselect - all of these features Tree Style Tab lacks.