$ git clone -n https://src.fedoraproject.org/rpms/blis.git /var/lib/mock/f39-build-1446281-32674/root/chroot_tmpdir/scmroot/blis
Cloning into '/var/lib/mock/f39-build-1446281-32674/root/chroot_tmpdir/scmroot/blis'...
$ git fetch origin f59643c69a8ca935d8e1d5d3835fbea28c8f12d6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/blis
 * [new ref]         f59643c69a8ca935d8e1d5d3835fbea28c8f12d6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f59643c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild