Fix potential crash in video condition

src/macro-external/opencv/macro-condition-video.cpp

@@ -200,6 +200,8 @@ bool MacroConditionVideo::LoadImageFromFile()
 	if (!_matchImage.load(QString::fromStdString(_file))) {
 		blog(LOG_WARNING, "Cannot load image data from file '%s'",
 		     _file.c_str());
+		(&_matchImage)->~QImage();
+		new (&_matchImage) QImage();
 		return false;
 	}
 

src/macro-external/opencv/opencv-helpers.cpp

@@ -2,7 +2,7 @@
 
 PatternMatchData createPatternData(QImage &pattern)
 {
-	PatternMatchData data;
+	PatternMatchData data{};
 	if (pattern.isNull()) {
 		return data;
 	}