This test is to check if disallowing of concurrent backups & restores works as expected.
When one backup/restore fails, the status is not updated properly, thus we need to set the status of backup/restore so that other nodes in cluster are aware of failures.

Some occurences :
https://play.clickhouse.com/play?user=play#c2VsZWN0IAp0b1N0YXJ0T2ZIb3VyKGNoZWNrX3N0YXJ0X3RpbWUpIGFzIGQsCmNvdW50KCksICBncm91cFVuaXFBcnJheShwdWxsX3JlcXVlc3RfbnVtYmVyKSwgIGFueShyZXBvcnRfdXJsKQpmcm9tIGNoZWNrcyB3aGVyZSAnMjAyMi0wNi0wMScgPD0gY2hlY2tfc3RhcnRfdGltZSBhbmQgdGVzdF9uYW1lIGxpa2UgJyV0ZXN0X2JhY2t1cF9yZXN0b3JlX29uX2NsdXN0ZXIvdGVzdF9kaXNhbGxvd19jb25jdXJyZW5jeS5weSUnIGFuZCB0ZXN0X3N0YXR1cyBpbiAoJ0ZBSUwnLCAnRkxBS1knKSBncm91cCBieSBkIG9yZGVyIGJ5IGQgZGVzYw==