Prevously TagLib saved tags to the first block, but read them from the
last one. Having multiple VC blocks is a non-standard situation, but
this is the best we can do (libFLAC also uses the first block in the
case of multiple VC blocks).
BUG:211089
git-svn-id: svn://anonsvn.kde.org/home/kde/trunk/kdesupport/taglib@1043985 283d02a7-25f6-0310-bc7c-ecb5cbfe19da