No exact track backup possible
My track.db is getting ever bigger and takes longer and longer to load, especially on my old devices (S4). I also synchronize the file between devices and my NAS.
So I wanted to delete some older tracks, but of course made a backup first. Just to be sure, I tried to reimport some of the backups - but the result was not identical. Not only was the "Track created" date different (which I can understand, technically), but the number of points was a little less than the original. Even some stats differed slightly. Apart from GPX, I tried KML and TCX (all other looked to me like they're not suitable at all), but that was even worse.
Am I doing something wrong or is that a bug? Is there any way to do a backup in a way that I could later reimport the tracks and have everything the way it was before (apart from the created date, perhaps)?