OWL Class Explorer No Longer Assigns Equivalent Classes

[prototypo]

The OWL Class Explorer should assign a Callimachus equivalent class when the "assign templates" link is selected to create a new Callimachus class. This appears to have worked through Callimachus 1.3.4, but stopped working sometime in the 1.4.X series.

To replicate this issue:

• Download the Linked Data book sample code
• Make a Callimachus folder (e.g. "bonobos")
• Upload the Turtle file ch9listings/listing9_1.ttl into the new folder
• Select the Turtle file
• Using the Callimachus main menu, select "Explore OWL classes in this graph"
• Select the "assign templates" link from the Bonobos class
• Note that no equivalent class is assigned

This bug should also be repaired in 1.4.3, if we produce a 1.4.3 release

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[catch-point]

This only effects owl:Classes that don't have an rdfs:label.

[prototypo]

So? That doesn't mean we should close the issue. We have code in the wild that relied on it working without a label.

[catch-point]

That was just an FYI. The commit makes rdfs:label optional in the master branch.