not sure if regression and what specific annex command caused it yet. initially detected with 8.20210621 released and bisected to 8.20210621-12-g4b1b9d7a8 AKA 8.20210630~39: datalad tests started to fail to git push because freshly created remote was already carrying some master. Some more details on original datalad issue #5759

dup see my comment --Joey