When old configuration is not set and is exported with new code into newer
format, the result is a domain added with domain name 'null'. This causes issues
with UI not showing configuration and with null domain being added into
configurations of various daemons.
Tests:
- To reproduce the issue, switch to a revision with old dynamicdns code. Then
switch to a latest version without the fix. A 'null' domain is added to
configuration.
- To reproduce the issue, switch to a revision with old dynamicdns code. Then
switch to a latest version with the fix. A 'null' domain is not added to
configuration.
- With null domain in the configuration. Start FreedomBox with the fix. The null
domain should be removed and null domain should not be announced to other
daemons.
Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>