Use separate identifier for push connections (#9150)
By using a separate id we can avoid sending the sessions
CSRF token as a GET parameter when initializing a push connection.
Cherry-picked from #8700 to the 7.7 branch.
Fix occasional empty rows in Table and TreeTable (#9551)
There's an intermittently happening issue with both Table and TreeTable, which results in row data disappearing.
This change removes a method which is probably a vestigial one from over five years ago and other changes are handling the things the method used to perform. Currently the method removes rows deemed unnecessary from the row buffer. The problem is, those rows are visible to the user and removing causes row contents to be lost.
Also included are manually runnable test cases which demonstrate that this removal actually prevents the issue from happening.
Fixes #7964
Fixes #5030
Do full connector tracker cleanup when the session lock is released (#9707) (#9730)
As there is no "request end" call after invoking UI.access() from a background thread,
the connector map was not earlier properly cleaned afterwards. If you toggled visibility of a
component from the background thread, the tracker state became inconsistent.
If this becomes a performance problem, it could probably be optimized to that cleanup
is done in request end and only at the end of access if not inside a request.
Backported from master
Fixes #9693