Fix to btostautau_mue_run2

Fix to btostautau_mue_run2: unfortunately, the previous version of the ana-prod did not properly include reverse PID samples. This has now been fixed: a series of wrong paths were updated, and new reverse PID samples have been added to the list of tuples.

This version here regenerates the (already correct) SS and OS samples, with the aim of archiving the older version of the ana-prod once the new samples are ready -- I took the opportunity to add more branches.

The superseded MR is !2746 (merged)