$ git clone -n https://src.fedoraproject.org/rpms/python-nbclassic.git /var/lib/mock/f40-build-2636515-66163/root/chroot_tmpdir/scmroot/python-nbclassic
Cloning into '/var/lib/mock/f40-build-2636515-66163/root/chroot_tmpdir/scmroot/python-nbclassic'...
$ git fetch origin ff4a9c75e2968c6105e62b65e2ce153c2a8cddf7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-nbclassic
 * [new ref]         ff4a9c75e2968c6105e62b65e2ce153c2a8cddf7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff4a9c7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild