Re: paragraph-start in Shell mode and Ielm.

[Richard Stallman]

    Actually, another problem is that some modes apparently _relied_ on the
    fact that paragraph-separate used to be meaningless if it did not also
    match paragraph-start.  The recent 22.0.50 changes in paragraph
    behavior have broken paragraphs at least in Shell mode and Ielm.

This is very disturbing news.

There are only two ways out of this squeeze: to back up to the
previous consistent design, or move forward to a new one.  One
advantages in moving back is that we know where the changes would have
to be made.  We don't know all the places that would have to be
changed to move forward.

Since the change was not made intentionally, and since there
is no great advantage in this alteration in the specifications
of paragraph-start, I think it is best if we move back.

Stefan, can you work on that?