Not fixed in 1.5.7-4.Bug starts in 1.5.7-2, where /usr/lib/i386-linux-gnu/wine-unstable/ is absent with all it's contents.
In 1.5.7-3 is still absent.In 1.5.7-4 is only 21 file of 389 is present in /usr/lib/i386-linux-gnu/wine-unstable/ and /usr/lib/i386-linux-gnu/wine-unstable/fakedlls is absent with all it's contents.