[git] git rebase error: cannot 'squash' without a previous commit first commit

 git reabse 出現 error: cannot 'squash' without a previous commit first commit

```

* ccccccc - (HEAD -> feature/test) C (1 second ago) 

* bbbbbb - (origin/feature/test) B

* aaaaaaa - (origin/main, origin/HEAD) A

```
在 feature/test 對於 想 git rebase -i aaaaaaa 去 squash B C 兩個 commit 

git rebase -i aaaaaaa
會出現

pick bbbbbb B

pick ccccccc C

# Rebase aaaaaaa.. ccccccc onto aaaaaaa (2 commands)

#

# Commands:

# p, pick <commit> = use commit

# r, reword <commit> = use commit, but edit the commit message

# e, edit <commit> = use commit, but stop for amending

# s, squash <commit> = use commit, but meld into previous commit

# f, fixup [-C | -c] <commit> = like "squash" but keep only the previous

#                    commit's log message, unless -C is used, in which case

#                    keep only this commit's message; -c is same as -C but

#                    opens the editor

如果在改成

s bbbbbb B

s ccccccc C
會出現 error: cannot 'squash' without a previous commit first commit
這時候可以使用  r, reword <commit> = use commit, but edit the commit message 去 squash 包含第一個commit

r bbbbbb B

s ccccccc C