$ git clone -n https://src.fedoraproject.org/rpms/rust-librsvg.git /var/lib/mock/f40-build-1820963-24911/root/chroot_tmpdir/scmroot/rust-librsvg
Cloning into '/var/lib/mock/f40-build-1820963-24911/root/chroot_tmpdir/scmroot/rust-librsvg'...
$ git fetch origin 2922a22f7eb16dce33690af44a9bf9f1c4bce179:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-librsvg
 * [new ref]         2922a22f7eb16dce33690af44a9bf9f1c4bce179 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2922a22 Update to version 2.58.1; Fixes RHBZ#2283160