https://lists.gnu.org/r/emacs-devel/2010-04/msg00086.html
+* feature and scratch branches
+
+Besides the master branch, which is where development takes place, and
+the "emacs-NN" release branches, we also have branches whose names
+start with "scratch/" and "feature/". The "feature/" prefix is used
+for feature branches that are intended to live for some time, while
+"scratch/" is for one-off throw-away-after-use branches.
+
+We do not intend to "git merge" from scratch branches, so force-pushes
+are tolerated, as well as commits with poor style, incomplete commit
+messages, etc.
+
+We do expect to "git merge" from feature branches so: no force push,
+and no commits that don't have a proper commit message.
+
+Automatic tests are run for feature/* branches on EMBA.
+See: https://emba.gnu.org/emacs/emacs/-/pipelines
+
* Installing changes from gnulib
Some of the files in Emacs are copied from gnulib. To synchronize