org.osgi.framework.BundleException: Region 'application.a.esa;0.0.0;osgi.subsystem.application;1' is already connected to region 'composite.a.esa;0.0.0;osgi.subsystem.composite;2

Starting a parent subsystem which has an already started child subsystem with an export sharing policy results in the exception below [1]. The exception occurs because the implementation attempts to set the already existing export sharing policy of the child subsystem during resolution.

[1]
org.osgi.framework.BundleException: Region 'application.a.esa;0.0.0;osgi.subsystem.application;1' is already connected to region 'composite.a.esa;0.0.0;osgi.subsystem.composite;2
at org.eclipse.equinox.internal.region.StandardRegionDigraph.connect(StandardRegionDigraph.java:158)
at org.eclipse.equinox.internal.region.BundleIdBasedRegion.connectRegion(BundleIdBasedRegion.java:176)
at org.apache.aries.subsystem.core.internal.StartAction.setExportIsolationPolicy(StartAction.java:267)
at org.apache.aries.subsystem.core.internal.StartAction.resolve(StartAction.java:237)
at org.apache.aries.subsystem.core.internal.StartAction.resolve(StartAction.java:184)
at org.apache.aries.subsystem.core.internal.StartAction.run(StartAction.java:116)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.aries.subsystem.core.internal.BasicSubsystem.start(BasicSubsystem.java:295)
at org.apache.aries.subsystem.itests.SubsystemTest.startSubsystemFromInstalled(SubsystemTest.java:874)
at org.apache.aries.subsystem.itests.SubsystemTest.startSubsystem(SubsystemTest.java:868)
at org.apache.aries.subsystem.itests.defect.AriesXXXXTest.test(AriesXXXXTest.java:80)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.ops4j.pax.exam.invoker.junit.internal.ContainerTestRunner.runChild(ContainerTestRunner.java:67)
at org.ops4j.pax.exam.invoker.junit.internal.ContainerTestRunner.runChild(ContainerTestRunner.java:37)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
at org.junit.runner.JUnitCore.run(JUnitCore.java:138)
at org.ops4j.pax.exam.invoker.junit.internal.JUnitProbeInvoker.invokeViaJUnit(JUnitProbeInvoker.java:125)
at org.ops4j.pax.exam.invoker.junit.internal.JUnitProbeInvoker.findAndInvoke(JUnitProbeInvoker.java:98)
at org.ops4j.pax.exam.invoker.junit.internal.JUnitProbeInvoker.call(JUnitProbeInvoker.java:74)
at org.ops4j.pax.exam.nat.internal.NativeTestContainer.call(NativeTestContainer.java:108)
at org.ops4j.pax.exam.spi.reactors.EagerSingleStagedReactor.invoke(EagerSingleStagedReactor.java:109)
at org.ops4j.pax.exam.junit.impl.ProbeRunner$2.evaluate(ProbeRunner.java:278)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.ops4j.pax.exam.junit.impl.ProbeRunner.run(ProbeRunner.java:112)
at org.ops4j.pax.exam.junit.PaxExam.run(PaxExam.java:93)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)