AbstractMultiTargetHandler-based handlers do not propagate failures to the top level failure-description

[standalone@localhost:9990 /] /path=*:query(where={read-only=1})
{
    "outcome" => "failed",
    "result" => [
        {
            "address" => [("path" => "jboss.server.temp.dir")],
            "outcome" => "failed",
            "result" => {
                "name" => "jboss.server.temp.dir",
                "path" => "/Users/hbraun/dev/prj/wildfly-core/core-build/target/wildfly-core-1.0.0.Alpha14-SNAPSHOT/standalone/tmp",
                "read-only" => true,
                "relative-to" => undefined
            },
            "rolled-back" => true
        },
        {
            "address" => [("path" => "user.home")],
            "outcome" => "failed",
            "result" => {
                "name" => "user.home",
                "path" => "/Users/hbraun",
                "read-only" => true,
                "relative-to" => undefined
            },
            "rolled-back" => true
        },
        {
            "address" => [("path" => "jboss.server.base.dir")],
            "outcome" => "failed",
            "result" => {
                "name" => "jboss.server.base.dir",
                "path" => "/Users/hbraun/dev/prj/wildfly-core/core-build/target/wildfly-core-1.0.0.Alpha14-SNAPSHOT/standalone",
                "read-only" => true,
                "relative-to" => undefined
            },
            "rolled-back" => true
        },
        {
            "address" => [("path" => "java.home")],
            "outcome" => "failed",
            "result" => {
                "name" => "java.home",
                "path" => "/Library/Java/JavaVirtualMachines/jdk1.7.0_67.jdk/Contents/Home/jre",
                "read-only" => true,
                "relative-to" => undefined
            },
            "rolled-back" => true
        },
        {
            "address" => [("path" => "user.dir")],
            "outcome" => "failed",
            "result" => {
                "name" => "user.dir",
                "path" => "/Users/hbraun/dev/prj/wildfly-core/core-build/target/wildfly-core-1.0.0.Alpha14-SNAPSHOT",
                "read-only" => true,
                "relative-to" => undefined
            },
            "rolled-back" => true
        },
        {
            "address" => [("path" => "jboss.server.data.dir")],
            "outcome" => "failed",
            "result" => {
                "name" => "jboss.server.data.dir",
                "path" => "/Users/hbraun/dev/prj/wildfly-core/core-build/target/wildfly-core-1.0.0.Alpha14-SNAPSHOT/standalone/data",
                "read-only" => true,
                "relative-to" => undefined
            },
            "rolled-back" => true
        },
        {
            "address" => [("path" => "jboss.home.dir")],
            "outcome" => "failed",
            "result" => {
                "name" => "jboss.home.dir",
                "path" => "/Users/hbraun/dev/prj/wildfly-core/core-build/target/wildfly-core-1.0.0.Alpha14-SNAPSHOT",
                "read-only" => true,
                "relative-to" => undefined
            },
            "rolled-back" => true
        },
        {
            "address" => [("path" => "jboss.server.log.dir")],
            "outcome" => "failed",
            "result" => {
                "name" => "jboss.server.log.dir",
                "path" => "/Users/hbraun/dev/prj/wildfly-core/core-build/target/wildfly-core-1.0.0.Alpha14-SNAPSHOT/standalone/log",
                "read-only" => true,
                "relative-to" => undefined
            },
            "rolled-back" => true
        },
        {
            "address" => [("path" => "jboss.server.config.dir")],
            "outcome" => "failed",
            "result" => {
                "name" => "jboss.server.config.dir",
                "path" => "/Users/hbraun/dev/prj/wildfly-core/core-build/target/wildfly-core-1.0.0.Alpha14-SNAPSHOT/standalone/configuration",
                "read-only" => true,
                "relative-to" => undefined
            },
            "rolled-back" => true
        },
        {
            "address" => [("path" => "jboss.controller.temp.dir")],
            "outcome" => "failed",
            "result" => {
                "name" => "jboss.controller.temp.dir",
                "path" => "/Users/hbraun/dev/prj/wildfly-core/core-build/target/wildfly-core-1.0.0.Alpha14-SNAPSHOT/standalone/tmp",
                "read-only" => true,
                "relative-to" => undefined
            },
            "failure-description" => "Illegal argument for attribute 'read-only'. Expected type BOOLEAN",
            "rolled-back" => true
        }
    ],
    "rolled-back" => true
}