$ git clone -n https://src.fedoraproject.org/rpms/lpairs.git /var/lib/mock/f41-build-1029192-18375/root/chroot_tmpdir/scmroot/lpairs
Cloning into '/var/lib/mock/f41-build-1029192-18375/root/chroot_tmpdir/scmroot/lpairs'...
$ git fetch origin e20e41ae364ef9ba6cbde2bad9105a52a69ece37:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lpairs
 * [new ref]         e20e41ae364ef9ba6cbde2bad9105a52a69ece37 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e20e41a Eliminate use of obsolete %patchN syntax (#2283636)