> mpfr_float_backend& operator=(const mpfr_float_backend& o)
>
> Needs to be a no-op in the case of self-assignment, otherwise the call to mpfr_set_prec sets the value to NaN, even though the precision and value doesn't actually change in this case :(
>
> There'll be an official patch shortly, but I need to wait for the revised tests to complete first (to make sure they catch this).

I have four questions regarding a patch. Please pardon if they are trivial, but this seems like the quickest way to receive answers, and searches didn't reveal the answers for me. 

1) Do I need to do anything to report this bug, or has a report on this one been filed?  2) Will the patch be contained in the 1.58 release?  3) If not, once a patch for this bug is released, will the patch show up in http://www.boost.org/patches/ ?  And one last question -- 4) Is there a way to detect whether a patch has been applied, and refuse to compile my program if it hasn't?  

Thanks a ton for the help, I truly appreciate it.

Daniel