Follow-up Comment #18, bug #67207 (group groff): You have probably realised the culprit is "echo". Looking at the -Z output:-
C\-
h24
tname
C\-
h24
tcan
C\-
h24
tyou
C\-
h24
tbelieve
C\-
h24
tit
n40 0
f1
V400
H216
t\%\-\-equally\-bafflingly\-garrulous\-and\-interminable\-option
You can see the .SY line has interpreted "\\-" as "\-" but the following line
it has stayed as "\\-". Must be a bug in echo, slash interpretation is either
on or off, not "on sometimes"!! Using "echo -e" for $input3 avoids the bug.
[derij@pip build (master)]$ sh --version
GNU bash, version 5.2.15(1)-release (x86_64-mageia-linux-gnu)
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