; * lisp/vc/vc.el (vc-deduce-fileset): Add commentary for bug#68174.

(cherry picked from commit eac9757f5c1be1d13ad8e2a8c098bf0a24435e5c)

diff --git a/lisp/vc/vc.el b/lisp/vc/vc.el
index 7b2301ee3e5d1cda34d8c4a56eb0f055ee3a4c2e..b8cc44fc3dc45c02badf5986940f1af07224aceb 100644 (file)
--- a/lisp/vc/vc.el
+++ b/lisp/vc/vc.el
@@ -1157,6 +1157,9 @@ BEWARE: this function may change the current buffer."
              (vc-checkout-model backend buffer-file-name))
        (list backend (list buffer-file-name))))
      ((derived-mode-p 'log-view-mode)
+      ;; 'log-view-mode' stashes the backend and the fileset in the
+      ;; two special variables, so we use them to avoid any possible
+      ;; mistakes from a decision made here ad-hoc.
       (list log-view-vc-backend log-view-vc-fileset))
      ((and (buffer-live-p vc-parent-buffer)
            ;; FIXME: Why this test?  --Stef