$ git clone -n https://github.com/xcp-ng-rpms/intel-ice-alt.git /var/lib/mock/v8.3-u-ysionneau1-9466-28208/root/chroot_tmpdir/scmroot/intel-ice-alt
Cloning into '/var/lib/mock/v8.3-u-ysionneau1-9466-28208/root/chroot_tmpdir/scmroot/intel-ice-alt'...
$ git fetch origin a19ab385e361528d7168bbddf0137062e4f54d53:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/intel-ice-alt
 * [new ref]         a19ab385e361528d7168bbddf0137062e4f54d53 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a19ab38 bump release for test build