$ git clone -n https://src.fedoraproject.org/rpms/python-flask.git /var/lib/mock/f39-build-1563740-37493/root/chroot_tmpdir/scmroot/python-flask
Cloning into '/var/lib/mock/f39-build-1563740-37493/root/chroot_tmpdir/scmroot/python-flask'...
$ git fetch origin d8d0c81b02522eb8cf3d13f3db23b538a7a67f08:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-flask
 * [new ref]         d8d0c81b02522eb8cf3d13f3db23b538a7a67f08 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d8d0c81 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild