$ git clone -n https://github.com/xcp-ng-rpms/blktap /var/lib/mock/v9.0-u-ydi1-11230-29599/root/chroot_tmpdir/scmroot/blktap
Cloning into '/var/lib/mock/v9.0-u-ydi1-11230-29599/root/chroot_tmpdir/scmroot/blktap'...
$ git fetch origin 9ceedbd942a6d16f96930e724966a92c1870f0ae:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/blktap
 * [new ref]         9ceedbd942a6d16f96930e724966a92c1870f0ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ceedbd bump release for test build