$ git clone -n https://src.fedoraproject.org/rpms/opensmtpd.git /var/lib/mock/f39-build-1492270-34528/root/chroot_tmpdir/scmroot/opensmtpd
Cloning into '/var/lib/mock/f39-build-1492270-34528/root/chroot_tmpdir/scmroot/opensmtpd'...
$ git fetch origin 66dc70f3d1d4051af608b51cba2096bd0e49b4b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/opensmtpd
 * [new ref]         66dc70f3d1d4051af608b51cba2096bd0e49b4b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 66dc70f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild