The recent Emacs commit 39380e1bd3bfc26e355445590e243fcfa940fc9f should 
look like this in 'git log' output:

   commit 39380e1bd3bfc26e355445590e243fcfa940fc9f
   Author:     Arsen Arsenović <arsen@aarsen.me>
   AuthorDate: Sun Dec 22 19:33:29 2024 +0000
   Commit:     Alan Mackenzie <acm@muc.de>
   CommitDate: Sun Dec 22 19:33:29 2024 +0000

       Java Mode: introduce the keyword `assert'.
       ...

However, there was a glitch and instead I see a blotch "�" (U+FFFD 
REPLACEMENT CHARACTER) where there should be "ć" (U+0107 LATIN SMALL 
LETTER C WITH ACUTE).

Since Arsen has another patch committed (by Dmitry) without the glitch, 
I expect the problem is on Alan's end. Alan, are you running Emacs in a 
single-byte locale to commit patches? If so, I suggest using a UTF-8 
locale instead, whenever the commit contains non-ASCII characters in the 
author's name or commit message.

To help avoid similar glitches in the future I installed the attached.

Apologies to Arsen for the misspelling.