[qt/qt/qtbase]: Summary of bulk changes made

Git repository change summary for qt/qt/qtbase
Pushed by mirror-service into branch '6.12'.
Changed from 9e55698a4b4ff80498227860b8cd9a327a50959c to b0678f1a714744f04858d90945e328eb87bd198b
Acknowledgement was received that this change introduces only existing code that has been pushed to another public open source repository.

This change contains the following new commits:

Git commit 70b64b5d0a9bdd5cbd5e05a69e6b9f311558b0d3 by Qt Cherry-pick Bot (on behalf of Friedemann Kleint) on 15/08/2026 at 08:21..
uic: Add a check for custom widgets' elements AddPageMethod

Task-number: QTBUG-149117
Change-Id: I8d932d433a3aa5bcae0518cee5edaa495d0de374
Reviewed-by: Joerg Bornemann <[email protected]>
(cherry picked from commit 9106c5a14bd77e15b1e898a9ff9c3733802fa07b)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>
https://invent.kde.org/qt/qt/qtbase/-/commit/70b64b5d0a9bdd5cbd5e05a69e6b9f311558b0d3

Git commit 9d661313e220b8641d500b54d4835f9ca55ba638 by Qt Cherry-pick Bot (on behalf of Friedemann Kleint) on 15/08/2026 at 08:21..
uic: Add checks for headers

Add a sanity check that identifies characters relevant for code
injection but still allows for extending the field by language-specific
information.

Task-number: QTBUG-149117
Task-number: PYSIDE-3411
Change-Id: Ie6b75f24e4fd3d2abb1c30012e47c0a70ae5c034
Reviewed-by: Joerg Bornemann <[email protected]>
(cherry picked from commit 088b884809089eb1f434d627e82a572e63d3dbe0)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>
https://invent.kde.org/qt/qt/qtbase/-/commit/9d661313e220b8641d500b54d4835f9ca55ba638

Git commit b0678f1a714744f04858d90945e328eb87bd198b by Qt Cherry-pick Bot (on behalf of Friedemann Kleint) on 15/08/2026 at 08:21..
uic: Add a check for connections

Use the previously added sanity check such that function
signatures still pass.

Fixes: QTBUG-149117
Change-Id: I9dfb7b346789fd489569f68fc1e1dba4319e2fbb
Reviewed-by: Joerg Bornemann <[email protected]>
(cherry picked from commit 97b177ccd070f8cd94c41d0ad8adc16b3d482a97)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>
https://invent.kde.org/qt/qt/qtbase/-/commit/b0678f1a714744f04858d90945e328eb87bd198b