FIX: Only unhide flagged post if editor is the author

Also, rename @user to @editor in PostRevisor

lib/post_revisor.rb

@@ -8,10 +8,17 @@ class PostRevisor
     @post = post
   end
 
-  def revise!(user, new_raw, opts = {})
-    @user, @new_raw, @opts = user, new_raw, opts
-    return false if not should_revise?
-    @post.acting_user = @user
+  # Recognized options:
+  #  :edit_reason User-supplied edit reason
+  #  :revised_at changes the date of the revision
+  #  :force_new_version bypass ninja-edit window
+  #  :bypass_bump do not bump the topic, even if last post
+  #  :skip_validation ask ActiveRecord to skip validations
+  #
+  def revise!(editor, new_raw, opts = {})
+    @editor, @new_raw, @opts = editor, new_raw, opts
+    return false unless should_revise?
+    @post.acting_user = @editor
     revise_post
     update_category_description
     update_topic_excerpt
@@ -54,7 +61,7 @@ class PostRevisor
   end
 
   def should_create_new_version?
-    @post.last_editor_id != @user.id ||
+    @post.last_editor_id != @editor.id ||
     get_revised_at - @post.last_version_at > SiteSetting.ninja_edit_window.to_i ||
     @opts[:force_new_version] == true
   end
@@ -64,7 +71,7 @@ class PostRevisor
       @post.version += 1
       @post.last_version_at = get_revised_at
       update_post
-      EditRateLimiter.new(@user).performed! unless @opts[:bypass_rate_limiter] == true
+      EditRateLimiter.new(@editor).performed! unless @opts[:bypass_rate_limiter] == true
       bump_topic unless @opts[:bypass_bump]
     end
   end
@@ -84,10 +91,10 @@ class PostRevisor
   def update_post
     @post.raw = @new_raw
     @post.word_count = @new_raw.scan(/\w+/).size
-    @post.last_editor_id = @user.id
+    @post.last_editor_id = @editor.id
     @post.edit_reason = @opts[:edit_reason] if @opts[:edit_reason]
 
-    if @post.hidden && @post.hidden_reason_id == Post.hidden_reasons[:flag_threshold_reached]
+    if @editor == @post.user && @post.hidden && @post.hidden_reason_id == Post.hidden_reasons[:flag_threshold_reached]
       @post.hidden = false
       @post.hidden_reason_id = nil
       @post.topic.update_attributes(visible: true)