In plain-text mode, rewrap sometimes wraps quoted text poorly.

When using plain-text mode, Rewrap sometimes doesn't wrap quoted text properly.

I can't figure out what causes it, but long strings of text with occasional line breaks seems to give Postbox fits. Instead of getting something nice like this:

> quoted text ...
> more quoted text ...
> etc.

I get this:

> quoted text ... goes on
and on without the proper leading
character before each line.

This raises the real problem which is why I should ever need to use Rewrap in the first place. It would be really nice if Postbox just hard-wrapped the quoted portions properly to start with.