branch: elpa/git-commit
commit 82ba5b2828383213ffab6c483f7d787b5c9da0ef
Author: Jonas Bernoulli <jo...@bernoul.li>
Commit: Jonas Bernoulli <jo...@bernoul.li>

    magit-log-format-author-margin: Better error of no margin option
---
 lisp/magit-log.el | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lisp/magit-log.el b/lisp/magit-log.el
index 9b72539462..6d8d5ed109 100644
--- a/lisp/magit-log.el
+++ b/lisp/magit-log.el
@@ -1595,7 +1595,8 @@ The shortstat style is experimental and rather slow."
 (defun magit-log-format-author-margin (author date &optional previous-line)
   (pcase-let ((`(,_ ,style ,width ,details ,details-width)
                (or magit-buffer-margin
-                   (symbol-value (magit-margin-option)))))
+                   (symbol-value (magit-margin-option))
+                   (error "No margin format specified for %s" major-mode))))
     (magit-make-margin-overlay
      (concat (and details
                   (concat (magit--propertize-face

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