Label rendering will skip rest of the batchnodes when there is a batchnode without quads

[cadaver]

• cocos2d-x version: 4.0

Label rendering will skip rest of the batchnodes when it encounters the first batchnode without quads. This will result in missing letters depending on the order the batchnodes have been populated.

cocos2d-x/cocos/2d/CCLabel.cpp

Line 1910 in 38ce692

return;

Should be fixable by using "continue" instead of "return".

[rh101]

There PR to fix this is #20528