Setting for displaying utf8 characters on all vt consoles results in panic on 14-CURRENT and 13.0-ALPHA3

To display utf8 characters on all vt console I did following settings.

1. Download GNU Unifont BDF file
   (http://unifoundry.com/pub/unifont/unifont-13.0.05/font-builds/unifont-13.0.05.bdf.gz)
2. gunzip unifont-13.0.05.bdf.gz
3. vtfontcvt unifont-13.0.05.bdf unifont.fnt
4. cp unifont.fnt /usr/share/vt/fonts
5. Add 'allscreens_flags="-f 8x16 unifont.fnt"' to /etc/rc.conf
6. Add 'hw.vga.textmode=0' to /boot/loader.conf.local
7. shutdown -r now

On 12.2-RELEASE and 11.4-RELEASE it works as is expected. But on
14-CURRENT(man) and 13.0-ALPHA3(stable/13) it result in kernel panic.

Screen shot of 14-CURRENT.
https://www.utahime.org/FreeBSD/panic.20210201.14-CURRENT.png

14-CURRENT(main):
yasu_at_rolling-vm-freebsd1[1006]% uname -a
FreeBSD rolling-vm-freebsd1.home.utahime.org 14.0-CURRENT FreeBSD 14.0-CURRENT #0 main-n244517-f17fc5439f5: Mon Feb  1 10:55:51 JST 2021     rootz_at_rolling-vm-freebsd1.home.utahime.org:/usr0/freebsd/src/obj/usr0/freebsd/src/git/amd64.amd64/sys/GENERIC  amd64

13.0-ALPHA3(stable/13):
yasu_at_rolling-vm-freebsd5[1005]% uname -a
FreeBSD rolling-vm-freebsd5.home.utahime.org 13.0-ALPHA3 FreeBSD 13.0-ALPHA3 #0 stable/13-c256214-g40cb0344eb2: Mon Feb  1 11:30:28 JST 2021     rootz_at_rolling-vm-freebsd5.home.utahime.org:/usr0/freebsd/src/obj/usr0/freebsd/src/git/amd64.amd64/sys/GENERIC  amd64

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Yasuhiro Kimura