Git proxy mechanism in HOB is broken because of the undelying changes to the mechanism used to access git repositories via a network proxy. The GIT_PROXY_HOST and GIT_PROXY_PORT are no longer used, and the ALL_PROXY environment variable needs to be exported in order to be used by oe-git-proxy script.
Let me know if you need any help using the new mechanism.
Implementation started.
Fix will be available in upcoming AB BA builds.
Verified in dylan:87eb70243749e0e2431f98770746fa42002f4441.