Confused between “Remove documents and keep annotations” and “Remove documents and all notes”

For both the options whole MindMap Notebook is deleted. Associated notes are being deleted it’s okay but why the annotations (not excerpts) are being deleted. There should be another document notebook with those annotations when I am removing the document from mindmap clicking “remove documents and keep annotations”

Can you make me understand the process? @Support-Team @Lanco_Support-Team @Bryan