[bug #65930] [me] large values of register `tv` cause infinite trap recursion

[Dave]

Follow-up Comment #14, bug #65930 (group groff):

[comment #4 comment #4:]
> since the `@t` internal macro is called by the `$h` and `$f`
> "API" macros, it's the redefiner's responsibility to cope with
> the more troublesome vertical spacing issues that arise.

Agreed.  But for someone with existing -me code, who has already addressed the
troublesome issues, I would hope a fix for this bug doesn't scuttle her
carefully crafted solution.  Having never created multi-line titles myself, I
have neither a solid grasp of those issues, nor a good test for a regression.

> I therefore see no need to put the vanished verbiage back; the
> leading `$` in the macro names imply the needful.

Right, I was unclear here again: I was referring only to the example of what a
user might want a redefined $h or $f for, addressed in the parenthetical
"(e.g., multi-line)".  I agree the rest of the sentence is redundant with the
general explanation of the leading $.


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