with --- $git checkout 9e924279c9f7354322209f8b2818aaed67a3a1b1~1 submission_thesis/CH2_FMEA/mvamp.png found it with $git log --diff-filter=D --summary which showed me all commits with deletes in! superb!
on the subject of UML applied to the FMEA process.
conversion from presentation.
