notes and preparing to refactor...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>

ui (gen4)/features/base.js

@@ -1111,6 +1111,7 @@ module.Tags = core.ImageGridFeatures.Feature({
 
 				this.markChanged('images', gids)
 			}],
+
 		// XXX
 		['prepareIndexForWrite', 
 			function(res, _, full){
@@ -1120,6 +1121,10 @@ module.Tags = core.ImageGridFeatures.Feature({
 				// 		- ..tags.bookmark -> .bookmarked
 				// XXX will need a symmetrical action to reverse all of this...
 			}],
+		['prepareJSONForLoad',
+			function(res){
+				// XXX
+			}],
 	],
 })
 

ui (gen4)/features/filesystem.js

@@ -938,6 +938,9 @@ module.Comments = core.ImageGridFeatures.Feature({
 		// prepare comments for saving to "comments/<keyword>"...
 		//
 		// NOTE: this will skip the 'raw' comment field...
+		// NOTE: we do not change the .json() format here, so we do not 
+		// 		need to do anything special to restore, i.e. no need for
+		// 		doing anything on .prepareJSONForLoad(..)
 		['prepareIndexForWrite',
 			function(res, _, full){
 				var changed = this.changes == null 

ui (gen4)/features/sort.js

@@ -464,6 +464,8 @@ module.Sort = core.ImageGridFeatures.Feature({
 				this.data.sort_method = 'Manual'
 			}],
 
+		// maintain .sort_order and .sort_cache separately from .data in
+		// the store...
 		['prepareIndexForWrite',
 			function(res, _, full){
 				var c = this.changes