$ git clone -n https://src.fedoraproject.org/rpms/scalasca.git /var/lib/mock/f45-build-35639-698/root/chroot_tmpdir/scmroot/scalasca
Cloning into '/var/lib/mock/f45-build-35639-698/root/chroot_tmpdir/scmroot/scalasca'...
$ git fetch origin 483c8ba0d2effd8a9ad6f328e776a92b8e990eeb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/scalasca
 * [new ref]         483c8ba0d2effd8a9ad6f328e776a92b8e990eeb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 483c8ba Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild