Small problem with slurs in polyphonic context

[Cameron Horsburgh]

Hi folks,

I don't know if anyone's interested in this problem I noticed with 2.7.40.

The attached image shows an excerpt from a polyphonic line I'm currently
setting. The top slur in the first set of double quavers looks odd (it
seems to connect the c to the b, not the e to the d), but it's difficult
to suggest how it could be done better.

The very next slur (from the c to the e) appears to come from the a in
the lower voice.

I don't have 2.6 installed, so I can't tell if it's a regression or not.

Cameron