Find Itemsets button remains disabled after connecting input if auto checkbox is off

[processo]

I keep the automatic execution checkbox off in Frequent Itemsets (to allow parameter setting before running) and the Find Itemsets button remains disabled even after input data is connected. Changing Minimal support and Max. number of itemsets enables it but other settings don't. It should be available once there is data on input and has not been run yet.

[markotoplak]

I confirm the bug. For me, the problem is that if the "autocommit" is disabled, inputting new data does neither run the computation nor enables the button. Steps to reproduce:

• Datasets (Foodmart 2000)
• Add Frequent Itemsets, but don't connect it
• Disable "autocommit"
• Connect the widget
• Observe that nothing was executed and the button is still disabled. Changing settings enables the button.

[janezd]

Another way to reproduce this is to simply open the widget - as preview run. It opens with data loaded, but the button disabled until moving any slider.