different results across versions for glmer/lmer with the quasi-poisson or quasi-binomial families: the lattest version might not be accurate...

Gosselin Frederic <frederic.gosselin <at> cemagref.fr> writes:

Dear R-helpers,

this mail is intended to mention a rather trange result and 
generate potential useful comments on it. I am
not aware of another posts on this issue 
( RSiteSearch("quasipoisson lmer version dispersion")).

[snip snip]

 I would definitely forward this to 
r-sig-mixed-models at lists.r-project.org, if I were you.
At one point I reported what may be the same bug;

http://tinyurl.com/ye3pkve

 I don't know when it appeared and when it was
fixed, so I don't know whether it explains your
results or not.