$ git clone -n https://src.fedoraproject.org/rpms/spamassassin.git /var/lib/mock/f39-build-1627497-39385/root/chroot_tmpdir/scmroot/spamassassin
Cloning into '/var/lib/mock/f39-build-1627497-39385/root/chroot_tmpdir/scmroot/spamassassin'...
$ git fetch origin 2b37274226ff572ce5d4d7ff20e6a56ebff30ec1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/spamassassin
 * [new ref]         2b37274226ff572ce5d4d7ff20e6a56ebff30ec1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b37274 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild