ml.ann state doesn't get restored correctly on "read"

[jamiebullock]

To reproduce:

• Open the ml.ann help patch
• add some training examples
• click train
• Change the write path to /tmp/test and click thewritemessage box
• click clear
• Change the read path to /tmp/test and click the read message box
• Click the map message box

Expected:

• The correct class label is output from the left outlet

Actual:

• -1 is output from the left outlet

[NiccoloGranieri]

Does this need to be tested before fixing it or are we sure this happens consistently?

[jamiebullock]

@NiccoloGranieri It happens consistently, but I think it's only ann not other objects