Merge branch 'status-selection'
Improve the selection behavior for the status widget.
Preserve and transplant the selection to other items in an
intuitive manner in more scenarios.
* status-selection:
CHANGES: add Status selection updates to the v3.11 release notes draft
status: improve the selection behavior for header items
status: improve the selection behavior
models: emit a notification with model contents
status: refactor StatusTreeWidget and add docstrings
qtutils: simplify the BlockSignals implementation
widgets: use qtutils.BlockSignals to manage blockSignals(bool)
qtutils: guard against unhashable widget types
Closes #1130
Closes #1131
Signed-off-by: David Aguilar <davvid@gmail.com>