2-character single-line does not display

[cena]

Regardless of language/brush, entering a single line consisting of a 2-character string does not display on the frontend or in Preview.

The following do display correctly:

• Entries of 1 character and 3 characters
• 2/+ lines consisting of 2-character strings:

See also: https://a8c.slack.com/archives/C6GGX896G/p1659100898753839?thread_ts=1659085924.820659&cid=C6GGX896G

Reported in https://wordpress.org/support/topic/two-letters-text-doesnt-show/

[StefMattana]

I looped @merkushi, and this is what's been shared so far:

• To fix it we'd need to edit the script, which looks not really doable.
• As a workaround, we could add a comment to the code to increase the number of symbols in the excerpt.
• The simplest solution, especially for plain text, is to use Code block.

[merkushin]

Just want to add, the problem is inside shCore.js which is part of syntaxhighlighter3.
The code of this script is obfuscated. I attach a screenshot of the method that removes content (in the last string, after auto-formatting):

[StefMattana]

@merkushin the user in the forum thread explained that they need this to recreate a tutorial page for a cloud server.
The tutorial separately shows code/command in order and displays those two letters as one of the commands.

Not sure if it's useful but I thought it was worth sharing here.