$ git clone -n https://src.fedoraproject.org/rpms/PEGTL.git /var/lib/mock/f41-build-side-1-2749573-31004/root/chroot_tmpdir/scmroot/PEGTL
Cloning into '/var/lib/mock/f41-build-side-1-2749573-31004/root/chroot_tmpdir/scmroot/PEGTL'...
$ git fetch origin d4f86191a043ef0f5079923c1e8b01fb8b537e49:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/PEGTL
 * [new ref]         d4f86191a043ef0f5079923c1e8b01fb8b537e49 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d4f8619 Use a better source URL (and use the autosetup macro)