Openscope: `fix` command with multiple arguments skips to last fix

[erikquinn]

Using the fix command with multiple fixes should cause a reroute where they proceed direct to the first one listed and then each of the subsequent ones, then resume their previous route. However, it is currently proceeding direct to the last fix given with the command, and skipping over the first ones.

@JasonMKurtz:

I can't figure out why "f dh457 dh458" results in the aircraft going to direct to the second one. Am I doing something wrong?

Originally reported in zlsa/atc#784.

[n8rzz]

should be retested after n8rzz#181 is merged

[siqing-wang]

It looks like it is not skipping to the last one. Instead, it uses reverse ordering.
Current behavior: "Fix A B C D" will go to D first, then C, then B, then A.

[n8rzz]

@erikquinn this issue goes away after openscope/openscope#193 is merged

[erikquinn]

Fix command deprecated. Reroutes work properly.