$ git clone -n https://src.fedoraproject.org/rpms/python-klein.git /var/lib/mock/f39-build-1549593-36908/root/chroot_tmpdir/scmroot/python-klein
Cloning into '/var/lib/mock/f39-build-1549593-36908/root/chroot_tmpdir/scmroot/python-klein'...
$ git fetch origin 91b357e6f741e788aa98bd9784f863ad636c544d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-klein
 * [new ref]         91b357e6f741e788aa98bd9784f863ad636c544d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91b357e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild