Crash by transform,mulargs when Sorted function argument too long

[tueda]

CF f;
Auto S x;
L F = f(<x1+x2+x3+x4>,...,<x7+x8+x9+x10>);
*repeat id f(x1?,x2?,?a) = f(x1*x2,?a);  * error: Sorted function argument...
transform f,mulargs(1,last);  * silent crash
P;
.end

terminates without saying the reason:

FORM 4.1 (Apr 26 2017, v4.1-20131025-339-gf92e6da) 64-bits  Run: Fri Apr 28 19:25:12 2017

Program terminating at test.frm Line 6 -->
Segmentation fault (core dumped)

[jodavies]

Since #516 the example gives Term too complex during normalization so we can close the issue.