No https authorization (user+password) after 0.8.11+ with dulwich 0.19+

Created originally on Bitbucket by fhgd

Using hg-4.5.3 and changeset 70c9dfdb0bc1 of hg-git together with dulwich 0.18.6 everything is OK:

$ hg outgoing https://github.com/fhgd/LoopyPlot.git comparing with https://github.com/fhgd/LoopyPlot.git http authorization required for https://github.com/fhgd/LoopyPlot.git/info/refs realm: GitHub user: fhgd password: **** [...]

Updating to changeset 666ab5997802 and to dulwich 0.19+ I get the following error:

$ hg outgoing https://github.com/fhgd/LoopyPlot.git comparing with https://github.com/fhgd/LoopyPlot.git abort: git remote error: unexpected http resp 401 for https://github.com/fhgd/LoopyPlot.git/info/refs?service=git-receive-pack

BTW: The ssh authentification is OK:

$ hg outgoing git+ssh://git@github.com/fhgd/LoopyPlot.git comparing with git+ssh://git@github.com/fhgd/LoopyPlot.git X11 forwarding request failed on channel 0 searching for changes [...]

Edited Dec 21, 2020 by Dan Villiom Podlaski Christiansen

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