v2.6.14_161023 nightly asserts when opening preferences UI

[mm0359]

Windows: XP, Vista. (win32)

"Avidemux v2.6.14 (161022_86da6684f4c)"
still succeeds.

Code Select Expand


...
[HandleAction] ************ PREFERENCES **************
[DIA_Preferences] Avisynth port: 9999
Paint event
...


"Avidemux v2.6.14 (161023_c61ee89f373)"
is broken.

Code Select Expand


...
[HandleAction] ************ PREFERENCES **************
[DIA_Preferences] Avisynth port: 9999
Saving crash file to ...\avidemux\crash.py
Crash Dump for Assert failed :box at line 147, file /home/fx/hudson/workspace/mingw32QT5Mxe/avidemux/qt4/ADM_UIs/src/T_toggle.cpp
ADM_setCrashHook  [libADM_core6.dll]
ADM_backTrack  [libADM_core6.dll]
DIA_Preferences()  [avidemux.exe]
HandleAction(Action)  [avidemux.exe]
MainWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)  [avidemux.exe]
QMetaObject::activate(QObject*, int, int, void**)  [Qt5Core.dll]
MainWindow::actionSignal(Action)  [avidemux.exe]
unknown function  [unknown module]
MainWindow::qt_metacast(char const*)  [avidemux.exe]
unknown function  [unknown module]
...


[mm0359]

Fixed
by
[Prefs] Fix dialog
in
"Avidemux v2.6.14 (161024_8b5bfb9baa1)".

And the added "HW Accel" panel displays fine.