bugfix for vertical form: #483

YYText/YYTextView.m

@@ -2421,7 +2421,7 @@ typedef NS_ENUM(NSUInteger, YYTextMoveDirection) {
     CGSize oldSize = self.bounds.size;
     [super setFrame:frame];
     CGSize newSize = self.bounds.size;
-    BOOL changed = _innerContainer.isVerticalForm ? (oldSize.height != newSize.height) : (oldSize.width != newSize.width);
+    BOOL changed = _innerContainer.isVerticalForm ? CGSizeEqualToSize(oldSize, newSize) : (oldSize.width != newSize.width);
     if (changed) {
         [self _updateInnerContainerSize];
         [self _commitUpdate];