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

Git repository change summary for qt/qt/qtbase
Pushed by mirror-service into branch 'dev'.
Changed from 200ba922a69507a93455e5d6544576899bbf483e to f48dca7a75c54e55d679200ec15fe8d4512c2626
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 47e6ccc478314689431c0bfae7a2696bf9520191 by Edward Welbourne on 24/07/2026 at 19:39..
Remove a duplicate `using` declaration

The lambda it appeared in was within a function that does the same.

Pick-to: 6.12
Task-number: QTBUG-77948
Change-Id: I170f1065d8f3ed5d30389e3f4f5ca8861e645464
Reviewed-by: Thiago Macieira <[email protected]>
https://invent.kde.org/qt/qt/qtbase/-/commit/47e6ccc478314689431c0bfae7a2696bf9520191

Git commit 2d6e5da5baeadbc8f032a7bf1570aa4fb97e3311 by Edward Welbourne on 24/07/2026 at 19:39..
Convert some matchIanaId() locals from int to qsizetype

They're about indexes into, and differences of position within, our
containers.

Pick-to: 6.12
Task-number: QTBUG-77948
Change-Id: I20a8f0e79fbcd9ea713a13f57fdd21f37f5fd808
Reviewed-by: Thiago Macieira <[email protected]>
https://invent.kde.org/qt/qt/qtbase/-/commit/2d6e5da5baeadbc8f032a7bf1570aa4fb97e3311

Git commit dcdd5659770fd9bae6bede18dceffe080951597a by Edward Welbourne on 24/07/2026 at 19:39..
Simplify an unnecessarily convoluted comment's phrasing

Double negatives are bad for human cognition.

Pick-to: 6.12
Task-number: QTBUG-77948
Change-Id: I9a0dc31986e709c4b4700511ff067a6d89c64ce7
Reviewed-by: Thiago Macieira <[email protected]>
https://invent.kde.org/qt/qt/qtbase/-/commit/dcdd5659770fd9bae6bede18dceffe080951597a

Git commit 7e8829b01a5556fe1f76a1751d931b42a13e97c6 by Shawn Rutledge on 24/07/2026 at 20:31..
Markdown parser: for image title, set both title and tooltip attributes

Fixes: QTBUG-148545
Pick-to: 6.12
Change-Id: Ib5f8b69a09598c413011e7ae0e9922da3ec46254
Reviewed-by: Oliver Eftevaag <[email protected]>
https://invent.kde.org/qt/qt/qtbase/-/commit/7e8829b01a5556fe1f76a1751d931b42a13e97c6

Git commit f48dca7a75c54e55d679200ec15fe8d4512c2626 by Edward Welbourne on 24/07/2026 at 20:31..
Map pre-zone abbreviation LMT to LocalTime if used as zone indicator

Everywhere's time gets described as Local Mean (Solar) Time prior to
the date at which each region that did so became a zone. This is thus
an entirely unhelpful abbreviation, other than telling us it's not a
UTC±HH[:mm] zone. So map it to LocalTime as a best guess and live with
the inevitability that it'll not infrequently be wrong. Formats
involving a zone really aren't appropriate for representing timestamps
before the 20th century in any case.

Pick-to: 6.12
Change-Id: I693c8bed870a176202fb9d19213f2f8903fc6306
Reviewed-by: Thiago Macieira <[email protected]>
https://invent.kde.org/qt/qt/qtbase/-/commit/f48dca7a75c54e55d679200ec15fe8d4512c2626