+ the current working directory is regarded as the root of the
+ work tree.
++
+Note that this variable is honored even when set in a configuration
+file in a ".git" subdirectory of a directory, and its value differs
+from the latter directory (e.g. "/path/to/.git/config" has
+core.worktree set to "/different/path"), which is most likely a
+misconfiguration. Running git commands in "/path/to" directory will
+still use "/different/path" as the root of the work tree and can cause
+great confusion to the users.