$ git clone -n https://src.fedoraproject.org/rpms/octave-flexiblas.git /var/lib/mock/f38-build-side-42-init-devel-1128998-30305/root/chroot_tmpdir/scmroot/octave-flexiblas
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1128998-30305/root/chroot_tmpdir/scmroot/octave-flexiblas'...
$ git fetch origin 1f63202a6611150714ade5c98d1304231e73dd99:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/octave-flexiblas
 * [new ref]         1f63202a6611150714ade5c98d1304231e73dd99 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1f63202 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild