GetResultItemProperty usage unclear

[zanthous]

I see now that in the tests file the function gets called twice to get the intended result, but this was very confusing. Could this maybe be explained somewhere like in the summary comment?

string ValueBuffer;
uint ValueBufferSize = 0;
bool ret = SteamInventory.GetResultItemProperty(m_SteamInventoryResult, 0, null, out ValueBuffer, ref ValueBufferSize);
if(ret) {
    ret = SteamInventory.GetResultItemProperty(m_SteamInventoryResult, 0, null, out ValueBuffer, ref ValueBufferSize);
}