I've had that and I've also had it where I did the same thing and it didn't make much difference. Probably depends on the bakk0 and how long it's been sitting in the pipe. Some blends (mostly aromatics) are just foul once they sit a while and you relight them later. Others are still quite tasty. I'd guess the ones that turn foul would be the likely suspects to foul a subsequent bowl. If there's still 1/4 bowl I'll sometimes risk it. If it's just a little pinch of dottle though, I'd tap it out first.