Bug 479252 - ProjectSpace is not saved on Commit

* Always create new resource on init, since we are adding a newly
created change package and expect the resource to only contain one
element.

Change-Id: I212565a5dd83ffc1a5cc2e4561b438d161458d0a
Signed-off-by: Johannes Faltermeier <jfaltermeier@eclipsesource.com>

bundles/org.eclipse.emf.emfstore.client/src/org/eclipse/emf/emfstore/internal/client/model/impl/ProjectSpaceBase.java

@@ -665,15 +665,15 @@ public void init() {
 		if (localChangePackage == null) {
 			if (Configuration.getClientBehavior().useInMemoryChangePackage()) {
 				localChangePackage = VersioningFactory.eINSTANCE.createChangePackage();
-				final Resource resource = getResourceSet().getResource(localChangePackageUri, false);
+				final Resource resource = getResourceSet().createResource(localChangePackageUri);
 				resource.getContents().add(localChangePackage);
 			} else {
 				final URI normalizedUri = getResourceSet().getURIConverter().normalize(localChangePackageUri);
 				final String filePath = normalizedUri.toFileString();
 				localChangePackage = VersioningFactory.eINSTANCE.createFileBasedChangePackage();
 				((FileBasedChangePackage) localChangePackage)
 					.initialize(filePath + FileBasedChangePackageImpl.FILE_OP_INDEX);
-				final Resource resource = getResourceSet().getResource(localChangePackageUri, false);
+				final Resource resource = getResourceSet().createResource(localChangePackageUri);
 				resource.getContents().add(localChangePackage);
 				try {
 					resource.save(ModelUtil.getResourceSaveOptions());