I was solving a titration question and the reaction I came to was this:
$$ \begin{array}{lcccc} \ce{&BOH(aq) &+ &HCl(aq) -> &BC(aq) &+ &H2O(l) }\\ \text{Initial} & x & & & 0 & & 0 \\ \text{Final} & x/4 & & & 3x/4 & & 3x/4 \end{array} $$
Titration was done with $\ce{HCl}$ and $\ce{BOH}$ is a weak base. I got the answer treating this as a buffer but then I thought why would the salt formed i.e. $\ce{BCl}$ not get hydrolyzed and have an impact on the $\mathrm{pH}.$ Tried thinking about it and could only come to the conclusion that that $\ce{HA}$ being acid would have major contribution to the $\mathrm{pH}$ though I am not satisfied.