$ git clone -n https://github.com/xcp-ng-rpms/intel-ice-alt.git /var/lib/mock/v8.3-incoming-9500-28234/root/chroot_tmpdir/scmroot/intel-ice-alt
Cloning into '/var/lib/mock/v8.3-incoming-9500-28234/root/chroot_tmpdir/scmroot/intel-ice-alt'...
$ git fetch origin 8f8cabf3f010cbae609b4d936eba4dd8f9d0b9f4:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/intel-ice-alt
 * [new ref]         8f8cabf3f010cbae609b4d936eba4dd8f9d0b9f4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f8cabf Merge pull request #3 from xcp-ng-rpms/ysu-8.3-intel-ice-alt-1.17.21