$ git clone -n https://src.fedoraproject.org/rpms/python-nbdime.git /var/lib/mock/f42-build-3272944-41309/root/chroot_tmpdir/scmroot/python-nbdime
Cloning into '/var/lib/mock/f42-build-3272944-41309/root/chroot_tmpdir/scmroot/python-nbdime'...
$ git fetch origin f9fddeaecf2f335a368ff92c3e1f62b57ebc3ed2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-nbdime
 * [new ref]         f9fddeaecf2f335a368ff92c3e1f62b57ebc3ed2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9fddea Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild