$ git clone -n https://src.fedoraproject.org/rpms/FoXlibf.git /var/lib/mock/f41-build-1111415-20153/root/chroot_tmpdir/scmroot/FoXlibf
Cloning into '/var/lib/mock/f41-build-1111415-20153/root/chroot_tmpdir/scmroot/FoXlibf'...
$ git fetch origin 7fb85589eb0317ae3443ab0654d39d72a4c3a9ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/FoXlibf
 * [new ref]         7fb85589eb0317ae3443ab0654d39d72a4c3a9ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7fb8558 Eliminate use of obsolete %patchN syntax (#2283636)