$ git clone -n https://src.fedoraproject.org/rpms/rust-lalrpop.git /var/lib/mock/f38-build-side-43-rust-devel-1420331-31461/root/chroot_tmpdir/scmroot/rust-lalrpop
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1420331-31461/root/chroot_tmpdir/scmroot/rust-lalrpop'...
$ git fetch origin e51a8b74335d8c512fb31e209e38d4a55af140fb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lalrpop
 * [new ref]         e51a8b74335d8c512fb31e209e38d4a55af140fb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e51a8b7 Update to version 0.19.12