But those of us who read the OP see the complaint of losing the entire TR cache.
The reason I brought up the Undelete service is because people are speculating on backups, whether or not they are done etc etc...when it is very clear they already do this...and that puts any debate about backups, their ability to do so, what kind of "epic undertaking(1)" or "spaghetti code(2)" stands in the way...to bed.
(1)(2) being the usual buzzwords that get trotted out because they saw a dev post it 7-10 years ago in an unrelated thread so it somehow also must be relevant in every single other thread someone is asking for something to be fixed in.