Re: Better cooperation between checkouts and stashing

I'm not sure how often WIP commits become accidentally published or
left in the history, but perhaps it would be advantageous to provide
a means of specifying officially that a particular commit is in fact
a WIP commit such that no other commits can be made on top of this WIP
commit and it can't be merged with other branches or pushed or whatever.

When will such blocking commits be useful?
Would you really like to support a stopper or barrier for branches?

Regards,
Markus