$ git clone -n https://src.fedoraproject.org/rpms/python-pyrfc3339.git /var/lib/mock/f40-build-2317721-58176/root/chroot_tmpdir/scmroot/python-pyrfc3339
Cloning into '/var/lib/mock/f40-build-2317721-58176/root/chroot_tmpdir/scmroot/python-pyrfc3339'...
$ git fetch origin 47395d06466c867065fc9e7c77372cb3ecb60ba3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pyrfc3339
 * [new ref]         47395d06466c867065fc9e7c77372cb3ecb60ba3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 47395d0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild