to-do lists updates

parsers/survex.py

@@ -24,17 +24,22 @@ It also scans the Loser repo for all the svx files, which it loads individually
 
 todo = """
 - Lots to do to cut down on unnecessary .save() calls to avoid hitting the db so much. SHould
-speed it up noticably.
+  speed it up noticably. 
+ 
+- Obscure bug in the *team inheritance and rootblock initialization needs tracking down
+  
+- Learn to use Django .select_related() and .prefetch_related() to speed things up
+  https://zerotobyte.com/how-to-use-django-select-related-and-prefetch-related/
         
 - LoadSurvexFile() Creates a new current survexfile and valid .survexdirectory
         The survexblock passed-in is not necessarily the parent. FIX THIS.
         
 - When Olly implements LEG in the  'dump3d --legs' utility, then we can use that to get the length of
-all the legs in a survex block instead of adding them up oursleves. Which means that we can
-ignore all the  Units and offset stuff, that troggle will work with survex files with backsights,
-repeated readings from distox etc.. Not actually useful for pre 2022 survey data, but good future-proofing.
-Also it will be a tiny bit more accurate as these leg lengths are after loop closure fixup.
-        
+  all the legs in a survex block instead of adding them up oursleves. Which means that we can
+  ignore all the  Units and offset stuff, that troggle will work with survex files with backsights,
+  repeated readings from distox etc.. Not actually useful for pre 2022 survey data, 
+  but good future-proofing.
+  Also it will be a tiny bit more accurate as these leg lengths are after loop closure fixup.
 """
 survexblockroot = None
 survexomitsroot = None