Internals pane broken - URI field won't open

[timbl]

((Looks like a type script into probllem, assuming that items on display are NamedNodes and not symbols the URI maybe ??)

When you open the internals pane and then click on the triangle to open the URI field for more stuff about the URI, the triangle disappears

Console trace:

Uncaught (in promise) TypeError: subject.site is not a function
    at Object.label (mashlib.js:66276)
    at mashlib.js:68844
    at Array.filter (<anonymous>)
    at _callee6$ (mashlib.js:68843)
    at tryCatch (mashlib.js:125794)
    at Generator.invoke [as _invoke] (mashlib.js:126023)
    at Generator.prototype.<computed> [as next] (mashlib.js:125846)
    at asyncGeneratorStep (mashlib.js:68164)
    at _next (mashlib.js:68186)
    at mashlib.js:6819