What is the default commit message ?

By default, the commit message is empty

Does git allow empty commit message ?

Yes, not by default but given --allow-empty-message

This is an uncommon use case

Why having an empty commit message ?

The TCRDD methodology encourages doing baby steps

When doing so, the commits are so small that almost every time, the only possible message is describing what has been changed which a kind of repetition with the commit’s content

How to avoid empty commit message ?

Give an optional message when gambling

When gambling :

add a message with the option --message (or -m) followed by the message
```
git gamble --red --message "This is a great message"
```
open the default editor to write a message with the option --edit
```
git gamble --red --edit
```

It may be a good idea to add a message when enabling a feature flag

Rearrange commits after

Add the end of iterations, the history can be rewritten using git rebase, commits can even be squashed