I am not sure where is the proper place to report the following bug.

input:
version(); interface(version); kernelopts(version);
u[1] := proc (t) options operator, arrow; 1+2*t+3*t^2+4*t^3+t^4+t^5+t^6+t^7+t^8+t^9+t^10 end proc;
u[2] := proc (t) options operator, arrow; t end proc;
save u, "/home/user/test.txt";
restart; read "/home/user/test.txt";

output:
User Interface: 277223
         Kernel: 277223