The following config script inside control.tar.gz

#!/bin/sh -e



. /usr/share/debconf/confmodule



db_fset mailadmin/database_host seen false

db_clear

db_purge



db_input medium mailadmin/database_host || true

db_go



db_get mailadmin/database_host

echo "$RET" > /tmp/from_config_script.txt



exit 0

with the template

Template: mailadmin/database_host

Type: string

Description: The database server's host name or IP address.

(file templates) does not show an input dialog when I install the package using dpkg -i, and when I run it from the command line as well.

Instead it writes "localhost" to /tmp/from_config_script.txt, even though this default value is not part of the template file any more. I never ever saw the input popup. The input popup is what I am trying to achieve.

I removed the package with apt-get purge mailadmin, but even purge did not clear this default value. What can I do?