Merge from origin/emacs-27

8c27af3ff4 Clarify how transient indentation modes are exited in the ...
fc37dc298f Fix the previous change

diff --cc doc/emacs/indent.texi
Simple merge

diff --cc lisp/progmodes/project.el
index abe563bec04c712eee2f203f670824239a183136,ca0755cf8cdcbf6996690e86ea609b2a064dad35..4c9b70ce043c9268c0beacb82b3d68e94b80b9cd
--- 1/lisp/progmodes/project.el
--- 2/lisp/progmodes/project.el
+++ b/lisp/progmodes/project.el
@@@ -725,10 -441,10 +725,10 @@@ requires quoting, e.g. `\\[quoted-inser
    (require 'xref)
    (require 'grep)
    (let* ((pr (project-current t))
-          (default-directory (project-root pr))
+          (default-directory (car (project-roots pr)))
           (files
            (if (not current-prefix-arg)
 -              (project-files pr (project-roots pr))
 +              (project-files pr)
              (let ((dir (read-directory-name "Base directory: "
                                              nil default-directory t)))
                (project--files-in-directory dir
@@@ -757,10 -474,10 +757,10 @@@ pattern to search for.
    (interactive (list (project--read-regexp)))
    (require 'xref)
    (let* ((pr (project-current t))
-          (default-directory (project-root pr))
+          (default-directory (car (project-roots pr)))
           (files
 -          (project-files pr (append
 -                             (project-roots pr)
 +          (project-files pr (cons
 +                             (project-root pr)
                               (project-external-roots pr)))))
      (xref--show-xrefs
       (apply-partially #'project--find-regexp-in-files regexp files)