Question on s-l+flow-in-block

To the YAML 1.2 spec writers,

In the current draft, rule #196, s-l+flow-in-block, requires
s-l-comments at the end. s-l-comments in turn requires either
s-b-comment or the start of the line, and s-b-comment requires
b-non-content. The required presence of b-non-content, which is
equivalent to b-break, means the following two streams are invalid if
they do not end with a break:

I am a document. This stream is going to end abruptly with NO line break.

I am a document. # This stream is still invalid if this stream halts
without a break.

...while both of them are valid if they do end with breaks.

Perhaps the s-l-comments in s-l+flow-in-block should be marked
optional, or at least something should be changed to make
b-non-content optional in the end it's not at the beginning of a line.

Sincerely,
Joshua Choi

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