Hairpin #'minimum-length doesn't work if hairpin preceded by dynamic marking

[nick . payne]

> Following input gives the output attached:
>
> %%%%%%%%%%%%%%%%%%
> \relative c'' {
>             \override Hairpin #'minimum-length = #5
>             c8\< c c\> c\!
>             c8\pp\< c c\> c\!
> } 
> %%%%%%%%%%%%%%%%%%

test6.png
Description: PNG image