invalid "save" dialog after loading additionals

[namdre]

if nothing is modified, the dialog shouldn't come up. Last working in 1.15.0

[palvarezlopez]

If I remember correctly, we activated this option for the case in which we load two different additional files from two differents sources (example: One file with detectors and another with busStops).

There is a middle solution, and is only enable the save dialog after loading additional, if previously there are at least one additional in the network. What do you mean?

[namdre]

I'm only talking about the case of loading a single additional file and this was working as expected earlier. I don't mind having the behavior you describe (only open save-dialog if there are more additionals then those loaded from a single file).

There is again a bit of a mess of unbuildable commits in the repo so the exact problem commit is unclear: https://github.com/eclipse-sumo/sumo/compare/720fba3fc00cab8be8a9bae121b731fb4fef8cc3..ff202ad6abe746a8d2041b68e25fc798d1132e45

The behavior changed somewhere during implementation of #11896 (see bisect log below). Since there is no ticket reference for an intentional change in behavior I doubt that it was intended.

# possible first bad commit: [ff202ad6abe746a8d2041b68e25fc798d1132e45] fixing gcc build. refs #3
# possible first bad commit: [659caa698852d81c1e88afc8a1f32c6c5a78444c] added tests refs #12304, #21
# possible first bad commit: [336bea6ca36419ea6d324a29c028a3b16103dec8] #2 doc #12304
# possible first bad commit: [21f79d3d3d2a2edd2329182e3d7e9a4b057d4577] Fixed problem loading networks in GNEConfigHandler::loadConfig(). Refs #11896
# possible first bad commit: [8e8e100f43b0fc36d6452e0503c375c729d89e3f] Added resetDefault() function in OptionsCont. Refs #11896
# possible first bad commit: [6cb290a56e19bc9cf10d5d0439b707bf21fc1149] Updated mySUMOOptions. Refs #11896
# possible first bad commit: [3313270b1a890cce83a4c7d0524ae41e1b464794] Now SUMOConfigs can be saved. Refs #11896
# possible first bad commit: [ef61d7fbec934eb75691390aa18b38cdd896f924] Fixed invalid warning. Refs #11896
# possible first bad commit: [9eb94bac53193ed1025cc7c760ed609233138752] Updated GNEConfigHandler::loadConfig(). Refs #11896
# possible first bad commit: [6f01e9be2654ad52e23624ed69630c59ae69adda] Updated GNEMeanDataHandler and GNEGeneralHandler. Refs #11896
# possible first bad commit: [720fba3fc00cab8be8a9bae121b731fb4fef8cc3] Updated MeanDataHandler(). Refs #11896