Unable to push a new branch: missing create-ref permission

Problem Solution
git push origin dev

results in

! [remote rejected] 8cf...b4d -> master
(User bruno does not have
create-ref privilege for reference
refs/heads/dev.)

Grant the permission to create a reference in the graph depot.

p4 grant-permission -u bruno -p create-ref -d gD1

See p4 grant-permission in Helix Core Command-Line (P4) Reference.