$ git clone -n https://src.fedoraproject.org/rpms/rust-peg-runtime0.6.git /var/lib/mock/f38-build-side-43-rust-devel-1408530-31382/root/chroot_tmpdir/scmroot/rust-peg-runtime0.6
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1408530-31382/root/chroot_tmpdir/scmroot/rust-peg-runtime0.6'...
$ git fetch origin 7af896060208c770fdec79f0717486f2332b23d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-peg-runtime0.6
 * [new ref]         7af896060208c770fdec79f0717486f2332b23d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7af8960 Initial import (peg-runtime 0.6 compat package)