BACKUP ERROR:Error: xtrabackup_apply_delta(): failed to apply /tmp/repro_crash/backup_3//cool_down/t1.ibd.delta to ./cool_down/t1.ibd.

# 2026-03-20T09:55:25 [2299355] | [00] 2026-03-20 09:55:24 Error: xtrabackup_apply_delta(): failed to apply /data/results/1773993465/113/1/backup_3//cool_down/t1.ibd.delta to ./cool_down/t1.ibd.

cd /tmp/repro_crash

rm -rf *

cp -r /data/results/1773993465/TBR-2395/1/backup_before_prepare_0 ./backup_0

cp -r /data/results/1773993465/TBR-2395/1/backup_before_prepare_1 ./backup_1

cp -r /data/results/1773993465/TBR-2395/1/backup_before_prepare_2 ./backup_2

cp -r /data/results/1773993465/TBR-2395/1/backup_before_prepare_3 ./backup_3

/Server_bin/10.11_new_debug_Og/bin/mariadb-backup --prepare --target-dir=/tmp/repro_crash/backup_0

/Server_bin/10.11_new_debug_Og/bin/mariadb-backup --prepare --target-dir=/tmp/repro_crash/backup_0 --incremental-dir=/tmp/repro_crash/backup_1

/Server_bin/10.11_new_debug_Og/bin/mariadb-backup --prepare --target-dir=/tmp/repro_crash/backup_0 --incremental-dir=/tmp/repro_crash/backup_2

/Server_bin/10.11_new_debug_Og/bin/mariadb-backup --prepare --target-dir=/tmp/repro_crash/backup_0 --incremental-dir=/tmp/repro_crash/backup_3