(master) Licence conflict making distributing MuseScore nightlies/alpha illegal
MuseScore contains components (including most of libmscore and mscore itself) that are licenced under GPLv2 “no later version”.
thirdparty/diff/ which is under Apache 2 licence, which is not compatible with the GPLv2 (only the GPLv3).
Until now, this code was unused, so this wasn’t a problem for Debian, although according to https://sourceforge.net/p/mscore/mailman/message/36428618/ OpenSuSE had a problem with it.
diff_match_patch is actually used (e.g. in
libmscore/scorefile.cpp), so that means MuseScore 3 is illegal at the moment.