Equally named subtypes are not resolved properly

[generalmimon]

I picked format jpeg.ksy from the format gallery in the devel Web IDE, loaded this JPG sample and the parsing ended up with this:

[Worker] Error TypeError: Cannot read property 'samplingX' of undefined
    at exportValue (kaitaiWorker.js:69)
    at kaitaiWorker.js:54
    at Array.map (<anonymous>)
    at exportValue (kaitaiWorker.js:54)
    at kaitaiWorker.js:65
    at Array.forEach (<anonymous>)
    at exportValue (kaitaiWorker.js:65)
    at kaitaiWorker.js:65
    at Array.forEach (<anonymous>)
    at exportValue (kaitaiWorker.js:65)

I did some digging and found that the problem is related to two subtypes with the same name component but contained in different types. The types are apparently accessed just by the name, not by path (kaitaiWorker.js:64 is handling this), so it finds types/segment_sos/types/component instead of the correct types/segment_sof0/types/component. And then it tries to access property sampling_x, which is present only in types/segment_sof0/types/component/instances/sampling_x and not in the other component, so it ends with an exception.