$ git clone -n https://src.fedoraproject.org/rpms/python-flask-mongoengine.git /var/lib/mock/f40-build-2058945-49153/root/chroot_tmpdir/scmroot/python-flask-mongoengine
Cloning into '/var/lib/mock/f40-build-2058945-49153/root/chroot_tmpdir/scmroot/python-flask-mongoengine'...
$ git fetch origin b5c238c0344aa98690036f0a9fd347e168287031:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-flask-mongoengine
 * [new ref]         b5c238c0344aa98690036f0a9fd347e168287031 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b5c238c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild