$ git clone -n https://src.fedoraproject.org/rpms/vokoscreenNG.git /var/lib/mock/f39-build-1558475-37305/root/chroot_tmpdir/scmroot/vokoscreenNG
Cloning into '/var/lib/mock/f39-build-1558475-37305/root/chroot_tmpdir/scmroot/vokoscreenNG'...
$ git fetch origin 8c0503e307746dadb083db7c3f92e93b35edf41a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vokoscreenNG
 * [new ref]         8c0503e307746dadb083db7c3f92e93b35edf41a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c0503e build: Add upstream patch fix