tie collision with rehearsal marks

[Ken Ferry]

Hi,

This is a quick bug report, which your project says you want via email.

If I insert this snippet:

a'1_\mp~ |
\mark \default
a8 fis e cis b a 

into the template at <http://tinyurl.com/yfz4aw>

Then the tie and the rehearsal mark overlap.  
I'm running Lilypond 2.8.7 on Mac OS X 10.4.7 PPC.

I expect to be able to work around the problem.

Thanks,
Ken