proftpd-core update from 1.3.7a to newer version because of FTPS with virtual host throws signal 11

[Ralf Eßwein]

Hello Maintainers,

my installation of debian 11 proftpd server, version 1.3.7a, does not
work anymore with FTPS access to the virtual host configuration in
standalone mode. I use it seldom, but remember it worked in a previous
version.  The observed failure on FTPS access with "signal 11" could
have been fixed in upstream available versions starting with i.e.
proftpd 1.3.7b in the realm of i.e.
https://github.com/proftpd/proftpd/issues/1063
https://github.com/proftpd/proftpd/issues/1239 .
IP based adressing still works.

Would it be possible to update the package proftpd in a next debian 11
dot release?

Kind Regards
Ralf Eßwein