$ git clone -n https://github.com/xcp-ng-rpms/wget.git /var/lib/mock/v8.3-u-pcoval2-10093-28710/root/chroot_tmpdir/scmroot/wget
Cloning into '/var/lib/mock/v8.3-u-pcoval2-10093-28710/root/chroot_tmpdir/scmroot/wget'...
$ git fetch origin eabd4c04cf7cace343849a9e1b1b848d7ad287de:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/wget
 * [new ref]         eabd4c04cf7cace343849a9e1b1b848d7ad287de -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eabd4c0 bump release for test build