jboner/akka — comment on commit 603a8ed034f0489cb1330e81d1159640b9432e16
File: akka-actor/src/main/scala/akka/actor/Extension.scala line 29
By viktorklang:

My point was:

class F extends ExtensionId[Something]

(new F)(system)
(new F)(system)

Will create 2 distinct extension instances of Something