Generic topologies

[apik]

For input file

generictopology T1=
   (-2,2)(-1,1)(1,2)(1,3)(2,4)(4,3)(4,3):
    p1,p2,p3,p4,p5;

generictopology T2=
    (-2,2)(-1,1)(3,1)(3,2)(3,4)(4,1)(2,4):
     p1,p2,p3,p4,p5;

Mapping works with topology T2 only, if i change in

https://github.com/apik/diana/blob/master/src/topology.c#L1193

  /*Checking can topology be changed:*/
   if (first_changed_vertex>last_vertex){
      top_let(i_topology, r_topology);/*Copy original topology to new */
      return(0);
   }/*if (first_changed_vertex>last_vertex)*/

(greater) sign to >= (greate or equal)

  /*Checking can topology be changed:*/
   if (first_changed_vertex>=last_vertex){
      top_let(i_topology, r_topology);/*Copy original topology to new */
      return(0);
   }/*if (first_changed_vertex>last_vertex)*/

But topology T1 does not work in both variants.
I also tried T1 with one of lines (1,3) or (2,4) shrinked.