$ git clone -n https://src.fedoraproject.org/rpms/rust-strum_macros0.21.git /var/lib/mock/f39-build-1517251-35705/root/chroot_tmpdir/scmroot/rust-strum_macros0.21
Cloning into '/var/lib/mock/f39-build-1517251-35705/root/chroot_tmpdir/scmroot/rust-strum_macros0.21'...
$ git fetch origin e52507302cccfabfdf1167df1cdb835545a2b49a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-strum_macros0.21
 * [new ref]         e52507302cccfabfdf1167df1cdb835545a2b49a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e525073 Regenerate with rust2rpm v24