#2328 Qt modified signal when scn.text is NULL

[John Ehresman]

The QByteArray passed to needs to have length = 0 if text is NULL under Qt6. Possible patch:

--- a/qt/ScintillaEditBase/ScintillaEditBase.cpp        Thu Apr 14 10:57:03 2022 -0400
+++ b/qt/ScintillaEditBase/ScintillaEditBase.cpp        Tue May 10 15:50:22 2022 -0400
@@ -739,7 +739,7 @@
                                emit linesAdded(added ? 1 : -1);
                        }


-                       const QByteArray bytes = QByteArray::fromRawData(scn.text, scn.length);
+                       const QByteArray bytes = QByteArray::fromRawData(scn.text, (scn.text != NULL ? scn.length : 0));
                        emit modified(scn.modificationType, scn.position, scn.length,
                                      scn.linesAdded, bytes, scn.line,
                                      scn.foldLevelNow, scn.foldLevelPrev);

[Neil Hodgson]

Committed fix as [842eb1].