$ git clone -n https://src.fedoraproject.org/rpms/rust-lv2-urid.git /var/lib/mock/f38-build-side-42-init-devel-1183871-30620/root/chroot_tmpdir/scmroot/rust-lv2-urid
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1183871-30620/root/chroot_tmpdir/scmroot/rust-lv2-urid'...
$ git fetch origin f4828e0b9554190d5b5363c8533b3413a59cebec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lv2-urid
 * [new ref]         f4828e0b9554190d5b5363c8533b3413a59cebec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f4828e0 Initial import; Fixes: RHBZ#2224762