This was reported on the German-language Wikipedia's VE feedback page. I would be surprised if this has not been reported before, but I could not find a ticket for this problem.

Steps to reproduce:

1. Go to an article with multiple sections, e.g. Prothonotary
2. Click on the edit link next to a section heading, e.g. next to "Byzantine usage"
3. Make a change in a different section, e.g. in "Secular judiciary"
4. Click on the Publish changes... button
5. Observe that the edit summary textbox is pre-filled with the text "/* Byzantine usage */"

Unless the editor manually edits/deletes the section marker, the edit summary suggests that changes were made (just) to the section "Byzantine usage".

This is related to T22307: Generate automatic summary /* blah */ when I manually add a section heading when editing and T14411: Automatic edit summary generation based on analyzing the change made.