On write operation to empty tag, neard exits following segfault:

Core was generated by `/usr/libexec/nfc/neard -nd'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x0000ffffbb4de960 in malloc_consolidate (av=0xffffbb5b8a50 <main_arena>) at /usr/src/debug/glibc/2.26-r0/git/malloc/malloc.c:4475
4475 unlink(av, nextchunk, bck, fwd);
(gdb) bt
#0 0x0000ffffbb4de960 in malloc_consolidate (av=0xffffbb5b8a50 <main_arena>) at /usr/src/debug/glibc/2.26-r0/git/malloc/malloc.c:4475
#1 0x0000ffffbb4e1490 in _int_malloc (av=av@entry=0xffffbb5b8a50 <main_arena>, bytes=bytes@entry=8192) at /usr/src/debug/glibc/2.26-r0/git/malloc/malloc.c:3710
#2 0x0000ffffbb4e3a58 in __libc_calloc (n=<optimized out>, elem_size=<optimized out>) at /usr/src/debug/glibc/2.26-r0/git/malloc/malloc.c:3437
#3 0x0000ffffbb4d6af8 in _GI__open_memstream (bufloc=0xfffff54a22e8, bufloc@entry=0xfffff54a2348, sizeloc=0xfffff54a22f0, sizeloc@entry=0xfffff54a2350)
at /usr/src/debug/glibc/2.26-r0/git/libio/memstream.c:83
#4 0x0000ffffbb535434 in _GI__vsyslog_chk (pri=31, flag=1, fmt=0xaaaabcb3d340 "%s:%s() condition 0x%x", ap=...) at /usr/src/debug/glibc/2.26-r0/git/misc/syslog.c:167
#5 0x0000aaaabcb28614 in ?? ()
#6 0x0000ffffbb5f8340 in nlmsg_free () from /usr/lib/libnl-3.so.200