$ git clone -n https://src.fedoraproject.org/rpms/python-pyrfc3339.git /var/lib/mock/f39-build-1454905-32912/root/chroot_tmpdir/scmroot/python-pyrfc3339
Cloning into '/var/lib/mock/f39-build-1454905-32912/root/chroot_tmpdir/scmroot/python-pyrfc3339'...
$ git fetch origin 4797bfc268f6ac08b1288f603d668498180b4334:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pyrfc3339
 * [new ref]         4797bfc268f6ac08b1288f603d668498180b4334 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4797bfc Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild