$ dig +dnssec nsec \\0.se.
dig: '\0.se.' is not a legal name (bad escape)
name.c:1414: REQUIRE((__builtin_expect(!!((name) != ((void *)0)), 1) && __builtin_expect(!!(((const isc__magic_t *)(name))->magic == ((('D') << 24 | ('N') << 16 | ('S') << 8 | ('n')))), 1))) failed, back trace
#0 0x558c30cd7067 in __do_global_dtors_aux_fini_array_entry()+0x558c308178e7
#1 0x558c30cd6fba in __do_global_dtors_aux_fini_array_entry()+0x558c3081783a
#2 0x558c30b6b33a in __do_global_dtors_aux_fini_array_entry()+0x558c306abbba
#3 0x558c30b6cdae in __do_global_dtors_aux_fini_array_entry()+0x558c306ad62e
#4 0x558c30b474a4 in __do_global_dtors_aux_fini_array_entry()+0x558c30687d24
#5 0x558c30b49402 in __do_global_dtors_aux_fini_array_entry()+0x558c30689c82
#6 0x558c30b4d016 in __do_global_dtors_aux_fini_array_entry()+0x558c3068d896
#7 0x558c30cfa827 in __do_global_dtors_aux_fini_array_entry()+0x558c3083b0a7
#8 0x7fe65e3b5064 in __do_global_dtors_aux_fini_array_entry()+0x7fe65def58e4
#9 0x7fe65dd8362d in __do_global_dtors_aux_fini_array_entry()+0x7fe65d8c3ead
Aborted

Tony.
-- 
f.anthony.n.finch  <dot@dotat.at>  http://dotat.at/  -  I xn--zr8h punycode
Thames: Northwest 6 to gale 8. Rough or very rough. Wintry showers. Mainly
good.