networks: Fix error during creation of PPPoE connections
- Currently, when trying to create PPPoE connection, we get an exception that dns_over_tls key is not found in the form's cleaned_data. Fix this by not expecting the field to be present only for PPPoE connections.
Tests:
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Edit a regular Ethernet connection and change the value of DNS-over-TLS to all the different values and notice that the value is updated as expected.
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Create a regular Ethernet connection with non-default value for DNS-over-TLS. The value for DNS-over-TLS on the connection set as expected.
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Create/edit/delete of a PPPoE connection works.
Signed-off-by: Sunil Mohan Adapa sunil@medhas.org