in src/main/java/org/apache/sling/jcr/base/internal/mount/ProxyWorkspace.java [101:107]
public void clone(String srcWorkspace, String srcAbsPath, String destAbsPath, boolean removeExisting) throws NoSuchWorkspaceException, ConstraintViolationException, VersionException, AccessDeniedException, PathNotFoundException, ItemExistsException, LockException, RepositoryException {
if (mountSession.isMount(srcAbsPath) && mountSession.isMount(destAbsPath)) {
delegate2.clone(srcWorkspace, srcAbsPath, destAbsPath, removeExisting);
} else {
delegate.clone(srcWorkspace, srcAbsPath, destAbsPath, removeExisting);
}
}