这是3.15版本的BUG吗?

最近在使用cocos2dx v3.15版时,运行过程引发了断言,断言发生在:工程目录\cocos2d\cocos\renderer\CCRenderer.cpp的388行:
// flush own queue when buffer is full
if(_filledVertex + cmd->getVertexCount() > VBO_SIZE || _filledIndex + cmd->getIndexCount() > INDEX_VBO_SIZE)
{
CCASSERT(cmd->getVertexCount()>= 0 && cmd->getVertexCount() < VBO_SIZE, “VBO for vertex is not big enough, please break the data down or use customized render command”);
CCASSERT(cmd->getIndexCount()>= 0 && cmd->getIndexCount() < INDEX_VBO_SIZE, “VBO for index is not big enough, please break the data down or use customized render command”);
drawBatchedTriangles();
}
我研究发现:cmd->getVertexCount()函数返回的是类TrianglesCommand的成员:_triangles.vertCount,然而_triangles在TrianglesCommand的构造函数里,这个成员是没有初始化的,比如memset 0,:joy:,这似乎埋下了不稳定的种子啊?不知各位大大怎么看?