TiddlySpace/tiddlyspace — comment on commit 14a50ba84cb0e508d21619532e72b296932011df
File: tiddlywebplugins/tiddlyspace/controlview.py line 286
By cdent:

NoBagError and NoTiddlerError are both subclasses of StoreError, this try block catches both, which are unlikely to happen, but could in a few different circumstances:

* somebody has chosen to remove their auxbag
* a tiddler in the auxbag is removed while things are being listed
* somehow how the database is wrong

So the goal of the block is to say: if the store messes up while trying to get the extra bags, just don't bother with those aux bags, but stay running.

It _is_ possible for one of the tiddlers in the auxbag to list a bag that does not exist, but that error is handled elsewhere.