$ git clone -n https://src.fedoraproject.org/rpms/rust-az.git /var/lib/mock/f39-build-1488558-34499/root/chroot_tmpdir/scmroot/rust-az
Cloning into '/var/lib/mock/f39-build-1488558-34499/root/chroot_tmpdir/scmroot/rust-az'...
$ git fetch origin 74d9af78bd32b88b0845fbe7ca86675d55ab1cfd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-az
 * [new ref]         74d9af78bd32b88b0845fbe7ca86675d55ab1cfd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 74d9af7 Remove deny(warnings) lint from doctests