>>929
$ git reflog master
1a804d9 (HEAD -> master, develop) master@{0}: merge develop: Fast-forward
b0325fc master@{1}: commit (initial): initial

$ git reflog develop
1a804d9 (HEAD -> master, develop) develop@{0}: merge feature5: Fast-forward
ba4e962 develop@{1}: merge feature4: Fast-forward
a32e11d develop@{2}: merge feature3: Fast-forward
8d9924f develop@{3}: merge feature2: Fast-forward
0f78740 develop@{4}: merge feature1: Fast-forward
47792a3 develop@{5}: merge feature0: Fast-forward
b0325fc develop@{6}: branch: Created from master

ってことは、commit履歴はreflogにしか無いって事か？
ならbrahchを消すとreflogも消されてcommit履歴が消えるが、マジ？
これだとbranchの復活は本質的に無理なことになってしまう。
(他branchに断片的には残ってるんだけどさ）