bug#13949: 24.4.1; `fill-paragraph' should not always put the buffer as modified

[Lars Magne Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

> This will call memmove to move a potentially large chunk of text.  Why
> not just hash the two parts separately?

Yeah, that's true.

What about the text property representation -- can that easily be
hashed, do you think?

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