$ git overlapping MOODLE_310_STABLE MOODLE_311_STABLE
                    Commit info                           |    Accum.   |    Total    |   Overlap
   #                   Hash                    (+)   (-)  |  (+)   (-)  |  (+)   (-)  | (rel) (tot)
==== ======================================== ===== ===== | ===== ===== | ===== ===== | ===== =====
   1 f86b5e354545542ecf1a0592c244506cc76086ec     2     2 |     2     2 |     2     2 |     0     0
   2 5ba86bc8f592c80b250403da9fc3dc627ca20636     6     6 |     8     8 |     6     6 |     2     2
   3 b4274fe6da7d6c7ff91e11195313800310453f1b     2     2 |    10    10 |     6     6 |     2     4

Summary:
  - by commits 66.667% (2/3) have overlapping
  - by lines 33.333% (4/12) are overlapping

OVERLAPPING FACTOR (weighted, product of the 2 above): 2222.222