$ git clone -n https://src.fedoraproject.org/rpms/rust-enum-display-derive.git /var/lib/mock/f40-build-2231925-53314/root/chroot_tmpdir/scmroot/rust-enum-display-derive
Cloning into '/var/lib/mock/f40-build-2231925-53314/root/chroot_tmpdir/scmroot/rust-enum-display-derive'...
$ git fetch origin f5d73a60475710d8ad3c13361aa7936f1600e477:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-enum-display-derive
 * [new ref]         f5d73a60475710d8ad3c13361aa7936f1600e477 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f5d73a6 Initial import (fedora#2249886).