$ git clone -n https://src.fedoraproject.org/rpms/xblas.git /var/lib/mock/f45-build-38619-726/root/chroot_tmpdir/scmroot/xblas
Cloning into '/var/lib/mock/f45-build-38619-726/root/chroot_tmpdir/scmroot/xblas'...
$ git fetch origin 009f1809ad23aca2cff299268c98c1200daa48de:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xblas
 * [new ref]         009f1809ad23aca2cff299268c98c1200daa48de -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 009f180 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild