Multiplication of coxeter group elements in coxeter3

[Paul Ziegler]

I think I have encountered a bug with the multiplication of coxeter group elements in the optional coxeter3 package. The following should return True but returns False:

from sage.libs.coxeter3.coxeter import CoxGroup as CoxGroup
W=CoxGroup(['A',2])
W([2,1])*W([2])==W([2,1,2])

It seems that elements are not properly put in normal form after multiplication:
W([2,1])*W([2])

returns

[2, 1, 2]

but

W([2,1,2])

returns

[1, 2, 1].

Sage version is 6.7.