Saved planning should only save the text of the planning

[fuhrmanator]

As a user who saves a planning, I'm surprised when I open a saved planning and I see the following:

Why are there saved Moodle events? Saved ICS events? It was my understanding that only the text of the planning would be saved.

It seems very complicated to remember all the details, such as the MBZ, the ICS, etc. The purpose of a saved planning was to re-use it from semester to semester, or from one group to another. So the ICS and MBZ save makes no sense to me.