[BUG] org-fill-paragraph [M-q] not apply on last paragraph

[stardiviner]

After recently (about weeks) update in Org Mode "master" branch. I found [M-q]
org-fill-paragraph command not apply on the last paragraph of region select
large part of text. I don't have this problem before.

And I confirmed this problem with minimal Emacs config with latest "master"
branch of org-mode.

The command "emacs -q" don't have this problem.

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[ stardiviner ]
       I try to make every word tell the meaning that I want to express.

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