$ git clone -n https://src.fedoraproject.org/rpms/biosig4c++.git /var/lib/mock/f40-build-792324-138328/root/chroot_tmpdir/scmroot/biosig4c++
Cloning into '/var/lib/mock/f40-build-792324-138328/root/chroot_tmpdir/scmroot/biosig4c++'...
$ git fetch origin f27e472648e16ef428d55294481e5a6e0c5aecb1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/biosig4c++
 * [new ref]         f27e472648e16ef428d55294481e5a6e0c5aecb1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f27e472 Rebuild with suitesparse 7.6.0