Since the very beginning when idle subscriptions where introduced
(commit 0bad84066b), waiting for a certain idle mask would clear
all other idle flags as well. This would cause idle events to get
lost.
Closes https://github.com/MusicPlayerDaemon/MPD/issues/1998
The former was deprecated with C++14.
According to the C++11 and C++17 standards, both files are identical.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
This reverts commit 58d7804d66. It
caused a use-after-free bug when Client::OnSocketError() was called
due to a failed write, e.g. if the output buffer was full.
