I moved my track collection to a new computer (by exporting different playlists including the files).
With the option "analyze newly imported tracks" enabled it has overwritten my Key + Key Text fields on the new computer, which bugs me, because I spent a lot of time checking and partly correcting the Key of all tracks manually.
With "analyze new tracks when loaded to deck" it additionally overwrites my existing beatgrid in the tracks when I load them for the first time on the new computer.
So there should be an option in the "analyze" settings that says:
"Overwrite already existing analysed elements" which is disabled by default, so an new analysis doesn't overwrite any existing element.
If you want to make it more detailed you make it possible to check this option separately for the different analysed elements (bpm, beatgrid, autogain, key, key text, ....).
Thanks!