lib/vagrant-hosts/config.rb in vagrant-hosts-2.8.1 vs lib/vagrant-hosts/config.rb in vagrant-hosts-2.8.2

@@ -85,10 +85,22 @@
 
     # @param other [VagrantHosts::Config]
     # @return [VagrantHosts::Config] The merged results
     def merge(other)
       result = super
-      result.instance_variable_set(:@hosts, self.hosts.dup + other.hosts.dup)
+
+      new_hosts = (self.hosts.dup + other.hosts.dup).uniq
+      result.instance_variable_set(:@hosts, new_hosts.to_a)
+
+      result.imports = (self.imports.dup + other.imports.dup).uniq
+
+      result.exports = {}
+      [self.exports, other.exports].each do |hash|
+        hash.each do |k, v|
+          result.exports[k] ||= []
+          result.exports[k] += v.dup
+        end
+      end
 
       result
     end
 
     def validate(machine)