$ git clone -n https://github.com/xcp-ng-rpms/blktap.git /var/lib/mock/v8.3-u-pcoval2-11518-29835/root/chroot_tmpdir/scmroot/blktap
Cloning into '/var/lib/mock/v8.3-u-pcoval2-11518-29835/root/chroot_tmpdir/scmroot/blktap'...
$ git fetch origin 94e1940c7878e4c602f6c046a8eed9d56fd6c85b:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/blktap
 * [new ref]         94e1940c7878e4c602f6c046a8eed9d56fd6c85b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 94e1940 bump release for test build