Version: 2.2.90 (using 4.3.5 (KDE 4.3.5) "release 3", KDE:KDE4:STABLE:Desktop / openSUSE_11.2)
OS: Linux (x86_64) release 22.214.171.124-0.1-desktop
Select several tracks in the playlist, right-click, Edit Track Details, click Per Track, click Guess Tags From Filename, and select %title, click OK, click Next to move to the next track, click Guess Tags From Filename again, and surprise - you're prompted to enter the filename layout again.
Inability to remember filename layout when guessing tags from filename makes this functionality almost unusable when processing many tracks.
FYI - in amarok 1.4 this wasn't an issue as the filename layoyt was preserved.
This is not implemented yet.
*** This bug has been marked as a duplicate of bug 226144 ***