$ git clone -n https://src.fedoraproject.org/rpms/rust-librsvg.git /var/lib/mock/f41-build-side-1-2803832-32820/root/chroot_tmpdir/scmroot/rust-librsvg
Cloning into '/var/lib/mock/f41-build-side-1-2803832-32820/root/chroot_tmpdir/scmroot/rust-librsvg'...
$ git fetch origin 630aa0189a785eee34eed686e718d0f17a7f47e6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-librsvg
 * [new ref]         630aa0189a785eee34eed686e718d0f17a7f47e6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 630aa01 Bump nalgebra to 0.33, markup5ever to 0.14, xml5ever to 0.20