$ git clone -n https://src.fedoraproject.org/rpms/datovka.git /var/lib/mock/f40-build-2252824-54196/root/chroot_tmpdir/scmroot/datovka
Cloning into '/var/lib/mock/f40-build-2252824-54196/root/chroot_tmpdir/scmroot/datovka'...
$ git fetch origin 8a53807345dd4c257a7d590eccff4e75f6a879be:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/datovka
 * [new ref]         8a53807345dd4c257a7d590eccff4e75f6a879be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a53807 Also dropped test_crypto_pin_token (reported upstream)