Type editor inconsistent UI behavior when adding both 'Canonised' and 'Classifiable' mixins properties

Reproduction scenario:
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• Login to the CMS with user with 'admin' privileges
• From the 'Browse' perspective go to the 'Configuration' tab
• Either open an already existing compound/document type and start editing or create a new one
• From the 'Mixins' tab, 1st add a 'Canonised' property and then add a 'Classifiable' property
• Delete the 'Canonised' property

Expected:
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• The UI should work consistenly and that the 'Classifiable' property still there and visible in the UI

Actual:
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• The 'Classifiable' property is not visible in the UI anymore
• Type editor UI after words does not work properly and starts to be inconsistent and the 'Classifiable' can not be added to the same compound/document type anymore