$ git clone -n https://src.fedoraproject.org/rpms/xfce4-screenshooter.git /var/lib/mock/f40-build-1951139-25188/root/chroot_tmpdir/scmroot/xfce4-screenshooter
Cloning into '/var/lib/mock/f40-build-1951139-25188/root/chroot_tmpdir/scmroot/xfce4-screenshooter'...
$ git fetch origin e1bcee3307bbdd1f2a7e090e26ca672f1e654fae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfce4-screenshooter
 * [new ref]         e1bcee3307bbdd1f2a7e090e26ca672f1e654fae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1bcee3 Update to v1.11.1