$ git clone -n https://src.fedoraproject.org/rpms/libsepol.git /var/lib/mock/f42-build-867523-175586/root/chroot_tmpdir/scmroot/libsepol
Cloning into '/var/lib/mock/f42-build-867523-175586/root/chroot_tmpdir/scmroot/libsepol'...
$ git fetch origin 8ab05bb157b4b2f653251b06e129875778b91a92:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsepol
 * [new ref]         8ab05bb157b4b2f653251b06e129875778b91a92 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ab05bb SELinux userspace 3.8-rc3 release