Public bug reported:
Binary package hint: debconf
When debconf records an empty string, it treats it essentially the same
as an unconfigured string. The reason for this is most likely that the
value is written as the last value of each selection line, and that for
empty strings these lines end with a tab and an empty string which is
then not properly recorded when reading the database again.
For example, when configuring mysql-server, debconf writes the following line
into its selections database:
mysql-server-5.1 mysql-server/root_password_again password
xxx
When the password is empty, mysql-server's postinst will ask for the
password 3 times because it won't notice that it has been set already.
NB: The point of this bug report is of course not to debate the value of
empty passwords. They can have different semantics, e.g. auto-generation
in combination with dbconfig-common. Therefore, debconf should recognise
empty strings as such.
** Affects: debconf (Ubuntu)
Importance: Undecided
Status: New
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Seeding not possible with empty strings
https://bugs.launchpad.net/bugs/533736
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