$ git clone -n https://src.fedoraproject.org/rpms/ghc-void.git /var/lib/mock/f41-build-838131-159541/root/chroot_tmpdir/scmroot/ghc-void
Cloning into '/var/lib/mock/f41-build-838131-159541/root/chroot_tmpdir/scmroot/ghc-void'...
$ git fetch origin 95f2a1c9aded88cba6fc3de2d670961f27407f81:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-void
 * [new ref]         95f2a1c9aded88cba6fc3de2d670961f27407f81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 95f2a1c bump release