A read with the same rows in another order never reached the screen: a
revert to YouTube, a sync or another device left the old order showing, and
the next write put it back on the server. With no write out on any list the
screen now takes it, and the undo history built on the old order goes. Own
reorders still keep theirs. This replaces the one flag all lists shared after
a rollback, and shows a reorder accepted after its list was picked again.
Also what the fourth review found: a list's reorders go one after the other,
a toast Undo asks for its place once the writes out have landed, an accepted
reorder keeps fresher rows from the cache, and a Play all disabled by the last
row going no longer strands the focus.
peter
035ee937a0