kea compiled with --enable-debug crash when -V/-v/-h command line option used

wlodek@ubuntu20-64-1:~$ /home/wlodek/kea_bin/sbin/kea-dhcp6 -V
1.7.8-git
git 6b4df52e0bf3a6fd781f6f5b182555df7e80230f
linked with:
log4cplus 1.1.2
OpenSSL 1.1.1f  31 Mar 2020
database:
MySQL backend 9.1, library 8.0.20
PostgreSQL backend 6.0, library 120002
Memfile backend 2.1
free(): double free detected in tcache 2
Aborted (core dumped)
wlodek@ubuntu20-64-1:~$ /home/wlodek/kea_bin/sbin/kea-dhcp6 -v
1.7.8-git
free(): double free detected in tcache 2
Aborted (core dumped)
wlodek@ubuntu20-64-1:~$ /home/wlodek/kea_bin/sbin/kea-dhcp6 -h
/home/wlodek/kea_bin/sbin/kea-dhcp6: invalid option -- 'h'
Kea DHCPv6 server, version 1.7.8-git

Usage: kea-dhcp6 -[v|V|W] [-d] [-{c|t} cfgfile] [-p number] [-P number]
  -v: print version number and exit.
  -V: print extended version and exit
  -W: display the configuration report and exit
  -d: debug mode with extra verbosity (former -v)
  -c file: specify configuration file
  -t file: check the configuration file syntax and exit
  -p number: specify non-standard server port number 1-65535 (useful for testing only)
  -P number: specify non-standard client port number 1-65535 (useful for testing only)
free(): double free detected in tcache 2
Aborted (core dumped)