The Fuzzy_sphere bug (c0cbdab) was previously undetected by
the testsuite because Circular_querry.cpp used circles
with radius that cannot exactly be represented (0.2) in
binary and a point could never exactly be on the circle
(the squared distance would be 0.04 + epsilon and the assertions
did not fail). This attempts to fix it by using decimals
that can exactly be represented.
The testsuite now compiles and runs succesfully locally.
0cface5c3c