Ceph

According to https://docs.ceph.com/en/latest/radosgw/multisite-sync-policy/#example-10-destination-params-user-mode, try to modify bucket by the following command:

radosgw-admin sync group pipe modify --bucket=buck11 \
                          --group-id=buck11-default --pipe-id=pipe-dest-owner \
                          --mode=user --uid=jenny

result in segfault,
ceph version 16.2.6 (ee28fb57e47e9f88813e24bbf4c14496ca299d31) pacific (stable)
1: radosgw-admin(+0x1bd82c4) [0x55eece76f2c4]
2: /lib64/libpthread.so.0(+0x12c20) [0x7fe827e43c20]
3: gsignal()
4: abort()
5: radosgw-admin(+0x111a457) [0x55eecdcb1457]
6: (std::_Optional_base<std::vector<rgw_zone_id, std::allocator<rgw_zone_id> >, false, false>::_M_get()+0x3e) [0x55eecdcd1f9c]
7: (std::optional<std::vector<rgw_zone_id, std::allocator<rgw_zone_id> > >::operator*() &+0x18) [0x55eecdcd329c]
8: main()
9: __libc_start_main()
10: _start()
NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.