Annoying Folder Selection: Should persist selection

Hi,
k-9's method to select mail folders by classifying them into 1st and 2nd class folders is excellent and quite usefull.

However, it is bulky and annoying, that the selection whether to see all, 1st or 1st and 2nd class folders must be done every time. When sorting hundres of mails into some folders (in a mailbox with dozens of folders) you need to open the menu and choose the selection every single time when moving a message, which drives one just crazy.

It should remember the selection (all, 1st, 1st+2nd,..) and remain it for folder selection menues until changed. Would make life much, much easier and should be just a little detail.

Expected behavior

Tell us what should happen

Actual behavior

Tell us what happens instead

Steps to reproduce

Environment

K-9 Mail version:

Android version:

Account type (IMAP, POP3, WebDAV/Exchange):

Start by locating the folder-selection menu and the code that applies the all, first-class, and first-plus-second-class filters. Confirm how the current selection is stored and reused between folder-selection menus; done means the chosen filter remains selected until the user changes it.