Percent character in mail_crypt_private_password not possible

Hello,

I am using the mail_crypt plugin with Dovecot 2.3 and have issues trying to use a mail crypt private password which contains a percent "%" character as you can see below:

$ doveadm -o plugin/mail_crypt_private_password=SomethingWith\%Percent mailbox cryptokey generate -u email@domain.tld -URf

doveadm(email@domain.tld): Error: Failed to expand plugin setting mail_crypt_private_password = 'SomethingWith%Percent': Unknown variable '%P'

Note here that the percent is escaped with a backslash "\%" in order for the shell not to process it.

Regards, Mabi