I know someone who is currently writing their master’s thesis. They will be the single author of the document. Our (German) university requires a statement that says something like: ‘I wrote all of this thesis myself unless otherwise specified’, meaning everything not cited is your own work (Eigenständigkeitserklärung).
Now the amount of supervision given for students of course varies between both students and supervisors, but it is generally understood that thesis examiners will read the thesis for grading.
However, one of the advisor’s/examiner’s of my acquaintance offered to proof-read their thesis. This proof-reading can be expected to be both for grammar and content, as the same thing was apparently done by both advisors for the person’s bachelor thesis.
This is not common in my department as far as I can tell. It seems unfair to me: the thesis to be graded was already improved by comments of people who will grade it. In addition, why would they proof-read something for their own examination?
I will most definitely not take any action in this issue. My opinion though is that this is different from proof-reading, e.g., a publication, because the thesis is subject to grading and will not necessarily be published.
Question: Would this situation be considered cheating, micro-managing or just better supervision than average? (or none of the above?)
This question is somewhat related, but the proof-reading is done by peers instead of examiners. Comments and answers are generally in favour of proof-reading, and one answer mentions proof-reading by supervisors is customary in the UK. I'm not sure whether this applies to Germany, since I haven’t heard about it before.