$ git clone -n https://src.fedoraproject.org/rpms/python-llvmlite.git /var/lib/mock/f40-build-807225-145185/root/chroot_tmpdir/scmroot/python-llvmlite
Cloning into '/var/lib/mock/f40-build-807225-145185/root/chroot_tmpdir/scmroot/python-llvmlite'...
$ git fetch origin 98a75d18dce0d08f8eab6873a9366bf590f6b6e1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-llvmlite
 * [new ref]         98a75d18dce0d08f8eab6873a9366bf590f6b6e1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98a75d1 Update to 0.42.0 (close RHBZ#2254414)