Regression count, and how to keep bugs around forever

[NightStrike]

On 12/19/07, Steven Bosscher <stevenb.gcc@gmail.com> wrote:
> Let's take a bug as an example case: http://gcc.gnu.org/23835
>
> Here, there is a bug report about a huge compile time increase.  The
> release manager decided  that this was not a release blocker for GCC
> 4.2.  So it was marked P4, and it disappeared from the radar for GCC
> 4.3 for everyone who only looks at the "Serious regressions".

Under this system, do P4's and P5's ever get fixed?