$ git clone -n https://src.fedoraproject.org/rpms/waycheck.git /var/lib/mock/f42-build-3279844-41338/root/chroot_tmpdir/scmroot/waycheck
Cloning into '/var/lib/mock/f42-build-3279844-41338/root/chroot_tmpdir/scmroot/waycheck'...
$ git fetch origin 0448c83644b4418c705bb7e2c717b531e5357857:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/waycheck
 * [new ref]         0448c83644b4418c705bb7e2c717b531e5357857 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0448c83 Update to 1.6.0