$ git clone -n https://src.fedoraproject.org/rpms/rust-privdrop.git /var/lib/mock/f38-build-side-42-init-devel-1083196-29891/root/chroot_tmpdir/scmroot/rust-privdrop
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1083196-29891/root/chroot_tmpdir/scmroot/rust-privdrop'...
$ git fetch origin ad04ba30101f788697aaa84e6d16ee72fa699b9d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-privdrop
 * [new ref]         ad04ba30101f788697aaa84e6d16ee72fa699b9d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ad04ba3 Initial import; Fixes: RHBZ#2224808