$ git clone -n https://src.fedoraproject.org/rpms/rust-librsvg.git /var/lib/mock/f41-build-side-1-2992789-36016/root/chroot_tmpdir/scmroot/rust-librsvg
Cloning into '/var/lib/mock/f41-build-side-1-2992789-36016/root/chroot_tmpdir/scmroot/rust-librsvg'...
$ git fetch origin f2424ecbb96260536f6bdc7d06285860a8edebd3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-librsvg
 * [new ref]         f2424ecbb96260536f6bdc7d06285860a8edebd3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f2424ec Update to version 2.59.1; Fixes RHBZ#2297875