$ git clone -n https://src.fedoraproject.org/rpms/php-alcaeus-mongo-php-adapter.git /var/lib/mock/f39-build-1852799-42354/root/chroot_tmpdir/scmroot/php-alcaeus-mongo-php-adapter
Cloning into '/var/lib/mock/f39-build-1852799-42354/root/chroot_tmpdir/scmroot/php-alcaeus-mongo-php-adapter'...
$ git fetch origin 829c02e9f068e86e6a17f241a8611e5968297711:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-alcaeus-mongo-php-adapter
 * [new ref]         829c02e9f068e86e6a17f241a8611e5968297711 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 829c02e v1.2.5