Jonathan Nieder <jrnieder@xxxxxxxxx> writes: > The most recent example I can find is 2010: > http://public-inbox.org/git/4C6A1C5B.4030304@xxxxxxxxxxxxxxxxx/. > > It also came up in 2007: > http://public-inbox.org/git/C0E9F681E68D48EB8989022D11FEE3D1@xxxxxxxxxxxxxxxxxxxxxxxx/ > Earlier in that year it even made the "What's not in 1.5.2" list. > http://public-inbox.org/git/11793556383977-git-send-email-junkio@xxxxxxx/ > > Perhaps those references could be a useful starting point for an > interested person's thinking. Thanks for links. It seems that my thinking back in 1.5.3 timeperiod was to introduce "precious" attribute. I noticed that among the four-message "What's not in 1.5.2" series, 3/4 has a large discussion that may be relevant to Brandon's "submodule is-active" thing.