Resource jars not included example

BUILD

load("@rules_scala_annex//rules:scala.bzl", "scala_binary")

# Binary with resources works as expected
scala_binary(
    name = "bin_res",
    srcs = glob(["*.scala"]),
    resources = ["some_resource.txt"],
    main_class = "SomeClass",
)

# Externally defined resource jar
java_library(
    name = "some_resources",
    resources = ["some_resource.txt"],
)

# Does not include resource jar in output (unless _deploy.jar)
scala_binary(
    name = "bin_missing_res",
    srcs = glob(["*.scala"]),
    resource_jars = [
        ":some_resources",
    ],
    main_class = "SomeClass",
)

# Correctly includes the resource jar, but unnecessarily redundant
scala_binary(
    name = "bin_includes_res",
    srcs = glob(["*.scala"]),
    resource_jars = [
        ":some_resources",
    ],
    deps = [
        ":some_resources",
    ],
    deps_used_whitelist = [
        ":some_resources",
    ],
    main_class = "SomeClass",
)

some_resource.txt

hello world

SomeClass.scala

class SomeClass {
  def main(args: Array[String]): Unit = println("Hello Cleveland!")
}

WORKSPACE

load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
load("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")

# Load rules scala annex
# Load rules scala annex
rules_scala_annex_commit = "0a8fb17406addde7925a64d80895e248920af178"

rules_scala_annex_sha256 = "4624fe69d78d46a8b912e91168c7102ad24ec3896cca6f0518db89f414c1caa7"

http_archive(
    name = "rules_scala_annex",
    sha256 = rules_scala_annex_sha256,
    strip_prefix = "rules_scala-{}".format(rules_scala_annex_commit),
    url = "https://github.com/higherkindness/rules_scala/archive/{}.zip".format(rules_scala_annex_commit),
)

http_archive(
    name = "rules_jvm_external",
    sha256 = "515ee5265387b88e4547b34a57393d2bcb1101314bcc5360ec7a482792556f42",
    strip_prefix = "rules_jvm_external-2.1",
    url = "https://github.com/bazelbuild/rules_jvm_external/archive/2.1.zip",
)

load("@rules_scala_annex//rules/scala:workspace.bzl", "scala_register_toolchains", "scala_repositories")

scala_repositories()

scala_register_toolchains()

# Load bazel skylib and google protobuf
git_repository(
    name = "bazel_skylib",
    #    tag = "0.8.0",
    commit = "3721d32c14d3639ff94320c780a60a6e658fb033",
    remote = "https://github.com/bazelbuild/bazel-skylib.git",
    shallow_since = "1553102012 +0100",
)

http_archive(
    name = "com_google_protobuf",
    sha256 = "0963c6ae20340ce41f225a99cacbcba8422cebe4f82937f3d9fa3f5dd7ae7342",
    strip_prefix = "protobuf-9f604ac5043e9ab127b99420e957504f2149adbe",
    urls = ["https://github.com/google/protobuf/archive/9f604ac5043e9ab127b99420e957504f2149adbe.zip"],
)

load("@com_google_protobuf//:protobuf_deps.bzl", "protobuf_deps")

protobuf_deps()

# Specify the scala compiler we wish to use; in this case, we'll use the default one specified in rules_scala_annex
bind(
    name = "default_scala",
    actual = "@rules_scala_annex//src/main/scala:zinc_2_12_8",
)

Note I would usually use a scala_library for any source, but aimed for a minimal example. The same results in both cases.