V2 alpha: issue removing sub tags

[ribico]

try this:

• create a tag
• add some items to the tag
• create a sub tag
• swipe to remove the sub tag you will notice that the sub tag stays there while the first item of the list is removed from the screen
• exit the tag view
• re-enter the tag view you will notice that the sub tag you wanted to remove has been removed for real and the first item that disappeared before is now listed