- When input changes, update visible item after currentItem has been set.
- Check if item is current when adding it.

value to something more sensible if desired.

This is the patch as supplied, which needs work and as of yet doesn't
compile on non-unix. Fixes pending. -- jpd

This reverts commit 714ef56a.

By popular demand.

If we receive a currentChanged, and currentView ain't set, we might crash in
handleExpansion

Crashes have happened at
StandardPLPanel::handleExpansion (this=<value optimized out>, index=@0x406b56a0) at
components/playlist/standardpanel.cpp

Spotted by jpeg.

And adapt the actions in consequences