Adding the plugin causes main class detection to fail

[taig]

project/build.properties (same issue with 0.13.17):

sbt.version=1.1.1

project/plugins.sbt:

addSbtPlugin("eu.sipria.sbt" % "sbt-closure" % "1.1.0")

build.sbt:

enablePlugins(SbtWeb)

src/main/scala/com/example/Main.scala:

package com.example

object Main {
  def main(args: Array[String]): Unit = {}
}

> sbt run
[info] Loading settings from plugins.sbt ...
[info] Loading global plugins from ~/.sbt/1.0/plugins/
[info] Loading settings from plugins.sbt ...
[info] Loading project definition from ./project/
[info] Loading settings from build.sbt ...
[info] Set current project to playground
[info] Packaging ./target/scala-2.12/playground_2.12-0.1.0-SNAPSHOT.jar ...
[info] Done packaging.
[error] java.lang.RuntimeException: No main class detected.
[error] 	at scala.sys.package$.error(package.scala:27)
[error] 	at sbt.Defaults$.$anonfun$bgRunTask$4(Defaults.scala:1163)
[error] 	at scala.Option.getOrElse(Option.scala:121)
[error] 	at sbt.Defaults$.$anonfun$bgRunTask$3(Defaults.scala:1163)
[error] 	at scala.Function1.$anonfun$compose$1(Function1.scala:44)
[error] 	at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:39)
[error] 	at sbt.std.Transform$$anon$4.work(System.scala:66)
[error] 	at sbt.Execute.$anonfun$submit$2(Execute.scala:262)
[error] 	at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:16)
[error] 	at sbt.Execute.work(Execute.scala:271)
[error] 	at sbt.Execute.$anonfun$submit$1(Execute.scala:262)
[error] 	at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:174)
[error] 	at sbt.CompletionService$$anon$2.call(CompletionService.scala:36)
[error] 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error] 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[error] 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error] 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[error] 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[error] 	at java.lang.Thread.run(Thread.java:745)
[error] (Compile / bgRun) No main class detected.
[error] Total time: 0 s, completed Mar 20, 2018 5:08:35 PM
[INFO] [03/20/2018 17:08:35.583] [Thread-2] [CoordinatedShutdown(akka://sbt-web)] Starting coordinated shutdown from JVM shutdown hook

This only happens when the addSbtPlugin("eu.sipria.sbt" % "sbt-closure" % "1.1.0") dependency is present. If commented out and replaced with addSbtPlugin("com.typesafe.sbt" %% "sbt-web" % "1.4.3") everything works as expected.

[taig]

This might be due to the definition of include- and excludeFilter lacking the in closure scoping. But that's just a wild guess.