sbt - resolvers are not propagated from dependency library

build.sbt

/*
Resolvers -- specified on child level are not effective / visible on / propagated to parent lib.

// related: https://stackoverflow.com/questions/10727079/how-do-transitive-resolvers-work-with-sbt#23158200

Example with https://github.com/etaty/rediscala that requires custom resolver for rediscala ver. 1.3

Don't forget to make sure that lib is not cached locally, e.g. rm -rf ~/.ivy2/cache/com.etaty.rediscala
*/


// # build.sbt - lib with rediscala (requiring custom resolver)

organization := "com.github.mkows"
name := "lib-with-rediscala"
version := "0.0.1-SNAPSHOT"
scalaVersion := "2.10.6"

// https://stackoverflow.com/questions/10727079/how-do-transitive-resolvers-work-with-sbt#23158200

// https://github.com/etaty/rediscala
resolvers += "rediscala" at "https://raw.github.com/etaty/rediscala-mvn/master/releases/"

libraryDependencies += "com.etaty.rediscala" %% "rediscala" % "1.3"
// with this, `resolvers += ...` is not needed
// libraryDependencies += "com.etaty.rediscala" %% "rediscala" % "1.3" from "https://raw.github.com/etaty/rediscala-mvn/master/releases/com/etaty/rediscala/rediscala_2.10/1.3/rediscala_2.10-1.3.jar"

libraryDependencies += "org.scalatest" %% "scalatest" % "2.2.4" % "test"



// # another build.sbt - parent using lib with rediscala

organization := "com.github.mkows"
name := "parent-using-lib-with-rediscala"
version := "0.0.1-SNAPSHOT"
scalaVersion := "2.10.6"

// NOTE: the below resolver must be specified, otherwise it won't be picked up from lib-with-rediscala
// resolvers += "rediscala" at "https://raw.github.com/etaty/rediscala-mvn/master/releases/"

libraryDependencies ++= Seq(
  "com.github.mkows" %% "lib-with-rediscala" % "0.0.1-SNAPSHOT",
  "org.scalatest" %% "scalatest" % "2.2.4" % "test"
)