The following screenshot shows Emacs 26.3 (GNU Emacs 26.3 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.14) of 2020-03-26, modified by Debian) editing a Markdown file:
Note that on some lines of the code block, some of the space characters at the end of lines are rendered as
_. If I go to any of these locations and do a
describe-char, they are reported as normal spaces:
character: SPC (displayed as SPC) (codepoint 32, #o40, #x20)
Looking at the file with a hex editor, I can confirm that these are normal
0x20 spaces just like all the other ones that don't show any artefacts.
These artefacts are stable across closing and reopening the file in Emacs. However, they are not shown in
What do they mean, do they mean anything or is it just a bug, and is there anything I can do to get rid of them?