$ git clone -n https://src.fedoraproject.org/rpms/wine-dxvk.git /var/lib/mock/f42-build-3406887-45143/root/chroot_tmpdir/scmroot/wine-dxvk
Cloning into '/var/lib/mock/f42-build-3406887-45143/root/chroot_tmpdir/scmroot/wine-dxvk'...
$ git fetch origin 088ee5d0b42d8b2182758e9ac2940e1f2a51a153:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wine-dxvk
 * [new ref]         088ee5d0b42d8b2182758e9ac2940e1f2a51a153 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 088ee5d Fixup sources