$ git clone -n https://src.fedoraproject.org/rpms/rust-lv2-core-derive.git /var/lib/mock/f38-build-side-42-init-devel-1083126-29882/root/chroot_tmpdir/scmroot/rust-lv2-core-derive
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1083126-29882/root/chroot_tmpdir/scmroot/rust-lv2-core-derive'...
$ git fetch origin cffa7bb4e2d31e5c9bd62023d84e359be3366a91:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lv2-core-derive
 * [new ref]         cffa7bb4e2d31e5c9bd62023d84e359be3366a91 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cffa7bb Initial import; Fixes: RHBZ#2224756